Geometry

JKSSB Panchayat Account Assistant · Mathematics · 100 practice questions with answers and explanations: 32 Easy, 36 Medium, 32 Hard.

Sample questions

Sample Easy question 1

What is the number of diagonals in an octagon?

  1. 16
  2. 18
  3. 20
  4. 22
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Answer: C. Number of diagonals = n(n-3)/2 = 8×5/2 = 20.

Sample Medium question 2

The exterior angle of a regular polygon is 40°. Find the number of sides.

  1. 7
  2. 8
  3. 9
  4. 10
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Answer: C. Number of sides = 360°/exterior angle = 360/40 = 9.

Sample Hard question 3

A ladder 10 m long leans against a wall with its foot 6 m from the wall. Find the height it reaches on the wall.

  1. 6 m
  2. 7 m
  3. 8 m
  4. 9 m
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Answer: C. Height = √(10² - 6²) = √64 = 8 m.

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