Selected MCQ

Current Question
If the area of a square is 144 sq cm, side is ____.
  • A. 10 cm
  • B. 12 cm
  • C. 14 cm
  • D. 16 cm
Correct Answer: B
Explanation:
Side = √144 = 12.
Related Question 1
Total area of 64 squares is 400 cm². Find the side of the big square.
  • A. 17 cm
  • B. 20 cm
  • C. 23 cm
  • D. 26 cm
Correct Answer: D
Explanation:
Total side calculation.
Related Question 2
Side of square increases by 25%. Increase in area is ____.
  • A. 52.65%
  • B. 56.25%
  • C. 50.75%
  • D. 42.75%
Correct Answer: B
Explanation:
Area ∝ side² → (1.25)².
Related Question 3
If the side of a square is increased by 25%, then its area increases by ____.
  • A. 25%
  • B. 55%
  • C. 40.5%
  • D. 56.25%
Correct Answer: D
Explanation:
Area change = (1.25)² = 1.5625 → 56.25% increase.
Related Question 4
If the side of a square is increased by 25%, by what percent does its area increase?
  • A. 25%
  • B. 40%
  • C. 50%
  • D. 56.25%
Correct Answer: D
Explanation:
Area increases by (1.25)² − 1 = 56.25%.
Related Question 5
If the area of a square is 64 cm², what is its side?
  • A. 6 cm
  • B. 7 cm
  • C. 8 cm
  • D. 9 cm
Correct Answer: C
Explanation:
Side = √64 = 8.