Geometry

LSSSSB Non-Technical · Mathematics · 100 practice questions with answers and explanations: 50 Easy, 50 Medium, 0 Hard.

Sample questions

Sample Easy question 1

In a right triangle, one leg is 5 cm and the hypotenuse is 13 cm. Find the other leg.

  1. 10 cm
  2. 13 cm
  3. 12 cm
  4. 11 cm
Show answer

Answer: C. Other leg = √(13² - 5²) = √144 = 12 cm.

Sample Easy question 2

In a right triangle, one leg is 7 cm and the hypotenuse is 25 cm. Find the other leg.

  1. 23 cm
  2. 22 cm
  3. 24 cm
  4. 25 cm
Show answer

Answer: C. Other leg = √(25² - 7²) = √576 = 24 cm.

Sample Easy question 3

In a right triangle, both legs are 9 cm each. Find the hypotenuse (nearest whole number).

  1. 14 cm
  2. 12 cm
  3. 15 cm
  4. 13 cm
Show answer

Answer: D. Hypotenuse = √(9² + 9²) = √162 ≈ 12.7, nearest whole number 13 cm.

Sample Medium question 4

The diagonals of a rhombus are 12 cm and 16 cm. Find the length of a side.

  1. 9 cm
  2. 11 cm
  3. 8 cm
  4. 10 cm
Show answer

Answer: D. Half-diagonals are 6 and 8; side = √(6² + 8²) = √100 = 10 cm.

Sample Medium question 5

The diagonals of a rhombus are 6 cm and 8 cm. Find the length of a side.

  1. 6 cm
  2. 4 cm
  3. 7 cm
  4. 5 cm
Show answer

Answer: D. Half-diagonals are 3 and 4; side = √(3² + 4²) = √25 = 5 cm.

Sample Medium question 6

A parallelogram has one angle of 65°. Find the adjacent angle.

  1. 110°
  2. 125°
  3. 115°
  4. 120°
Show answer

Answer: C. Adjacent angles in a parallelogram are supplementary: 180° - 65° = 115°.

More Mathematics topics for LSSSSB Non-Technical

Related articles