Geometry

SSC CGL · Quantitative Aptitude · 100 practice questions with answers and explanations: 32 Easy, 36 Medium, 32 Hard.

Sample questions

Sample Easy question 1

What is the measure of each interior angle of an equilateral triangle?

  1. 45°
  2. 60°
  3. 90°
  4. 120°
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Answer: B. All three angles of an equilateral triangle are equal, and they sum to 180°, so each is 60°.

Sample Medium question 2

In a circle, a chord subtends an angle of 120° at the center. Find the angle it subtends at a point on the major arc.

  1. 55°
  2. 60°
  3. 65°
  4. 70°
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Answer: B. The angle at the circumference is half the angle at the center: 120°/2 = 60°.

Sample Hard question 3

A ladder 13 m long leans against a wall with its foot 5 m from the wall. Find the height it reaches on the wall.

  1. 10 m
  2. 11 m
  3. 12 m
  4. 13 m
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Answer: C. Height = √(13² - 5²) = √144 = 12 m.

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