Selected MCQ

Current Question
The diagonal of a square is 10 cm. What is its side?
  • A. 5
  • B. 6
  • C. 7
  • D. 5√2
Correct Answer: D
Explanation:
Side = diagonal/√2.
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
A rhombus has a side of 26 m and a diagonal of 20 m. Find the area.
  • A. 529 m²
  • B. 240 m²
  • C. 260 m²
  • D. 480 m²
Correct Answer: D
Explanation:
Use the diagonal relation.
Related Question 4
The perimeters of two squares are 48 cm and 20 cm. Find the difference in their sides.
  • A. 15√2 cm
  • B. 13√2 cm
  • C. 16√2 cm
  • D. 17√2 cm
Correct Answer: B
Explanation:
Side = perimeter/4; difference leads to 13√2 cm.
Related Question 5
The perimeter of a square is equal to the perimeter of a rectangle of length 16 cm. What is the side of the square?
  • A. 23.57 cm
  • B. 47.14 cm
  • C. 84.92 cm
  • D. 94.94 cm
Correct Answer: A
Explanation:
Equating the perimeters and solving for the side gives the side ≈ 23.57 cm.