Geometry

JKSSB Sub-Inspector (Executive) · Mathematics · 100 practice questions with answers and explanations: 32 Easy, 36 Medium, 32 Hard.

Sample questions

Sample Easy question 1

Two angles of a triangle are 45° and 75°. Find the third angle.

  1. 55°
  2. 58°
  3. 60°
  4. 62°
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Answer: C. Third angle = 180° - 45° - 75° = 60°.

Sample Medium question 2

The diagonals of a rhombus are 10 cm and 24 cm. Find the length of a side.

  1. 11 cm
  2. 12 cm
  3. 13 cm
  4. 14 cm
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Answer: C. Half-diagonals are 5 and 12; side = √(5² + 12²) = √169 = 13 cm.

Sample Hard question 3

In a right triangle, one leg is 9 cm and the hypotenuse is 41 cm. Find the other leg.

  1. 38 cm
  2. 39 cm
  3. 40 cm
  4. 41 cm
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Answer: C. Other leg = √(41² - 9²) = √1600 = 40 cm.

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