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Triangles Circles Angles Competitive Exams

120 questions · Mathematics

  1. Question 1 of 120

    The sum of angles around a point is:

  2. Question 2 of 120

    The circumference of a circle is 88 cm (use π = 22/7). Find its radius.

  3. Question 3 of 120

    A triangle with one interior angle greater than 90° is called:

  4. Question 4 of 120

    In an equilateral triangle, the centroid, orthocenter, circumcenter, and incenter:

  5. Question 5 of 120

    Two complementary angles differ by 20°. Find the smaller angle.

  6. Question 6 of 120

    Find the perimeter of an equilateral triangle with side length 7 cm.

  7. Question 7 of 120

    A tangent to a circle is always _____ to the radius drawn at the point of contact.

  8. Question 8 of 120

    The sum of the interior angles of a quadrilateral is:

  9. Question 9 of 120

    The area of an equilateral triangle with side length a is given by:

  10. Question 10 of 120

    The angle formed between a radius and a tangent line at the point where the tangent touches the circle is:

  11. Question 11 of 120

    The centroid of a triangle divides each median from the vertex in the ratio:

  12. Question 12 of 120

    Two similar triangles have corresponding sides in the ratio 1:2. Find the ratio of their areas.

  13. Question 13 of 120

    The area of a semicircle with radius r is given by:

  14. Question 14 of 120

    When two straight lines intersect, the vertically opposite angles formed are:

  15. Question 15 of 120

    The angle subtended by an arc at the center of a circle is related to the angle subtended by the same arc at the circumference by which rule?

  16. Question 16 of 120

    Angles inscribed in the same segment of a circle, subtending the same arc, are always:

  17. Question 17 of 120

    An inscribed angle in a circle measures 40°. Find the central angle subtending the same arc.

  18. Question 18 of 120

    A right triangle has legs of length 3 and 4. Find the length of the hypotenuse.

  19. Question 19 of 120

    If each interior angle of a regular polygon is 150°, how many sides does it have?

  20. Question 20 of 120

    Equal chords of a circle are always:

  21. Question 21 of 120

    Two tangents drawn to a circle from the same external point are:

  22. Question 22 of 120

    A line segment joining two points on a circle is called a:

  23. Question 23 of 120

    According to the Triangle Inequality Theorem, the sum of any two sides of a triangle must be:

  24. Question 24 of 120

    In similar triangles, the ratio of their perimeters equals:

  25. Question 25 of 120

    Two angles are supplementary, and one is 3 times the other. Find the larger angle.

  26. Question 26 of 120

    A triangle with all three sides of different lengths is called:

  27. Question 27 of 120

    In similar triangles, corresponding sides are always:

  28. Question 28 of 120

    Circles that share the same center but have different radii are called:

  29. Question 29 of 120

    An isosceles right triangle has angles of:

  30. Question 30 of 120

    The circumference of a circle is given by the formula:

  31. Question 31 of 120

    Find the circumference of a circle with radius 7 cm (use π = 22/7).

  32. Question 32 of 120

    A central angle in a circle measures 100°. Find the inscribed angle subtending the same arc.

  33. Question 33 of 120

    The region of a circle bounded by two radii and the arc between them is called a:

  34. Question 34 of 120

    When two parallel lines are cut by a transversal, the alternate interior angles are:

  35. Question 35 of 120

    The area of a triangle is given by the formula:

  36. Question 36 of 120

    In a cyclic quadrilateral, opposite angles are always:

  37. Question 37 of 120

    According to the Pythagorean theorem, for a right triangle with legs a, b and hypotenuse c:

  38. Question 38 of 120

    From an external point, how many tangents can be drawn to a given circle?

  39. Question 39 of 120

    Which congruence criterion states that two triangles are congruent if two angles and the included side are equal?

  40. Question 40 of 120

    The point of intersection of the angle bisectors of a triangle is called the:

  41. Question 41 of 120

    Which congruence criterion applies specifically to right triangles, comparing the hypotenuse and one side?

  42. Question 42 of 120

    Can sides of length 5, 6, and 10 form a triangle?

  43. Question 43 of 120

    When two parallel lines are cut by a transversal, the co-interior (allied/consecutive interior) angles are:

  44. Question 44 of 120

    The sum of the exterior angles of any convex polygon, taken one at each vertex, is always:

  45. Question 45 of 120

    Find the area of a semicircle with radius 7 cm (use π = 22/7).

  46. Question 46 of 120

    Which congruence criterion states that two triangles are congruent if all three corresponding sides are equal?

  47. Question 47 of 120

    The area of a circle is given by the formula:

  48. Question 48 of 120

    The sum of the interior angles of a pentagon (5 sides) is:

  49. Question 49 of 120

    In an isosceles triangle, which pair of angles is always equal?

  50. Question 50 of 120

    From a point lying exactly on a circle, how many tangents can be drawn to that circle?

  51. Question 51 of 120

    The region of a circle bounded by a chord and the arc it cuts off is called a:

  52. Question 52 of 120

    If the diameter of a circle is 20 cm, find its radius.

  53. Question 53 of 120

    A triangle with exactly two equal sides is called:

  54. Question 54 of 120

    Using Heron's Formula, find the area of a triangle with sides 3, 4, and 5.

  55. Question 55 of 120

    The Midsegment Theorem states that a segment joining the midpoints of two sides of a triangle is:

  56. Question 56 of 120

    In a 30°-60°-90° triangle, the sides are in the ratio:

  57. Question 57 of 120

    An angle that measures between 180° and 360° is called:

  58. Question 58 of 120

    A triangle has two interior angles of 50° and 60°. Find the exterior angle at the third vertex.

  59. Question 59 of 120

    Find the length of an arc subtending a 90° angle at the center of a circle with radius 14 cm (use π = 22/7).

  60. Question 60 of 120

    The formula for the length of an arc subtending an angle θ at the center of a circle of radius r is:

  61. Question 61 of 120

    Find the area of an equilateral triangle with side length 4 cm.

  62. Question 62 of 120

    A triangle has two angles of 40° and 70°. Find the third angle.

  63. Question 63 of 120

    An angle bisector divides an angle into:

  64. Question 64 of 120

    When two parallel lines are cut by a transversal, the corresponding angles are:

  65. Question 65 of 120

    A perpendicular drawn from the center of a circle to a chord always:

  66. Question 66 of 120

    An 80° angle is bisected. Find the measure of each resulting angle.

  67. Question 67 of 120

    Can sides of length 3, 4, and 8 form a triangle?

  68. Question 68 of 120

    In an equilateral triangle, each interior angle measures:

  69. Question 69 of 120

    The angles of a triangle are in the ratio x : 2x : 3x. Find the largest angle.

  70. Question 70 of 120

    In a 30°-60°-90° triangle, if the side opposite the 30° angle is 5, find the hypotenuse.

  71. Question 71 of 120

    A triangle with all interior angles less than 90° is called:

  72. Question 72 of 120

    When two parallel lines are cut by a transversal, the alternate exterior angles are:

  73. Question 73 of 120

    Two triangles are similar if:

  74. Question 74 of 120

    The sum of the interior angles of a hexagon (6 sides) is:

  75. Question 75 of 120

    Find the supplement of a 65° angle.

  76. Question 76 of 120

    Two angles whose sum is 90° are called:

  77. Question 77 of 120

    Two straight lines intersect, forming four angles. If one angle is 70°, find its adjacent (supplementary) angle.

  78. Question 78 of 120

    Find the complement of a 35° angle.

  79. Question 79 of 120

    Two adjacent angles whose non-common sides form a straight line are called a:

  80. Question 80 of 120

    Which congruence criterion states that two triangles are congruent if two sides and the included angle are equal?

  81. Question 81 of 120

    A line that touches a circle at exactly one point is called a:

  82. Question 82 of 120

    If two sides of a triangle are 6 cm and 9 cm, which of the following CANNOT be the length of the third side?

  83. Question 83 of 120

    In a cyclic quadrilateral, one angle measures 85°. Find its opposite angle.

  84. Question 84 of 120

    An angle that measures between 90° and 180° is called:

  85. Question 85 of 120

    An angle that measures less than 90° is called:

  86. Question 86 of 120

    A midsegment of a triangle measures 6 cm. Find the length of the corresponding third side.

  87. Question 87 of 120

    A right triangle has a hypotenuse of 10 and one leg of 6. Find the other leg.

  88. Question 88 of 120

    Find the area of a right triangle with legs of length 5 cm and 12 cm.

  89. Question 89 of 120

    The angle inscribed in a semicircle is always:

  90. Question 90 of 120

    The point of intersection of the perpendicular bisectors of the sides of a triangle is called the:

  91. Question 91 of 120

    A perpendicular drawn from a vertex of a triangle to the opposite side (or its extension) is called a(n):

  92. Question 92 of 120

    A right triangle has a hypotenuse of 13 and one leg of 5. Find the other leg.

  93. Question 93 of 120

    Each exterior angle of a regular octagon (8 sides) measures:

  94. Question 94 of 120

    The longest possible chord of a circle is:

  95. Question 95 of 120

    The sum of angles on a straight line is:

  96. Question 96 of 120

    The exterior angle of a triangle is equal to:

  97. Question 97 of 120

    A line segment joining a vertex of a triangle to the midpoint of the opposite side is called a:

  98. Question 98 of 120

    The point of intersection of the three altitudes of a triangle is called the:

  99. Question 99 of 120

    The formula for the area of a sector subtending an angle θ at the center of a circle of radius r is:

  100. Question 100 of 120

    The sum of any two interior angles of a triangle is always:

  101. Question 101 of 120

    The diameter of a circle is related to its radius by the formula:

  102. Question 102 of 120

    The sum of the interior angles of a triangle is always:

  103. Question 103 of 120

    In a cyclic quadrilateral, one angle measures 70°. Find its opposite angle.

  104. Question 104 of 120

    Two similar triangles have corresponding sides in the ratio 2:3. Find the ratio of their areas.

  105. Question 105 of 120

    An arc of a circle that is shorter than a semicircle (subtends an angle less than 180° at the center) is called a:

  106. Question 106 of 120

    If two angles are each complementary to the same angle, then those two angles are:

  107. Question 107 of 120

    Find the area of a sector subtending a 60° angle at the center of a circle with radius 6 cm (leave your answer in terms of π).

  108. Question 108 of 120

    The sum of all arcs that together make up a complete circle is:

  109. Question 109 of 120

    The Tangent-Chord Angle Theorem states that the angle between a tangent and a chord at the point of contact equals:

  110. Question 110 of 120

    Each interior angle of a regular hexagon measures:

  111. Question 111 of 120

    In any triangle, the longest side is always opposite the:

  112. Question 112 of 120

    Find the perimeter of a triangle with sides 7 cm, 8 cm, and 9 cm.

  113. Question 113 of 120

    Find the area of a circle with radius 14 cm (use π = 22/7).

  114. Question 114 of 120

    Find the area of a triangle with base 10 cm and height 6 cm.

  115. Question 115 of 120

    An angle that measures exactly 90° is called:

  116. Question 116 of 120

    Two circles are said to be congruent if they have:

  117. Question 117 of 120

    According to the Intersecting Chords Theorem, when two chords intersect inside a circle, the products of their respective segments are:

  118. Question 118 of 120

    A line that intersects a circle at exactly two points is called a:

  119. Question 119 of 120

    Two straight lines intersect. If one angle formed is 70°, find the angle vertically opposite to it.

  120. Question 120 of 120

    Two angles whose sum is 180° are called:

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