Selected MCQ

Current Question
In a circle of radius 5 cm, two equal chords are each 6 cm. What is the distance between them?
  • A. 24/5 cm
  • B. 12/5 cm
  • C. 7/5 cm
  • D. None of these
Correct Answer: D
Explanation:
The calculated distance does not match the given options.
Related Question 1
Two circles have a radius relation. Area of the square is 196 cm². Find radius.
  • A. 12π
  • B. 16π
  • C. 24π
  • D. 32π
Correct Answer: C
Explanation:
Side=14, radius=7×? → area relation.
Related Question 2
The radius of a wheel is 22.4 cm. Distance covered in one revolution is ____.
  • A. 252 m
  • B. 704 m
  • C. 352 m
  • D. 808 m
Correct Answer: B
Explanation:
Circumference = 2πr.
Related Question 3
The radius of a semicircle is 6.3 cm. Find its perimeter.
  • A. 35.4 cm
  • B. 32.4 cm
  • C. 32 cm
  • D. 30 cm
Correct Answer: B
Explanation:
Perimeter = πr + 2r.
Related Question 4
The radius of a cylinder equals that of a sphere. Compare their volumes.
  • A. 4/3 times
  • B. 2/3 times
  • C. Equal
  • D. Equal to diameter
Correct Answer: A
Explanation:
Sphere volume = 4/3 πr³ vs cylinder πr²h.
Related Question 5
The radius of a circle is increased by 1%. By what percent does its area increase?
  • A. 1.01%
  • B. 5.01%
  • C. 3.01%
  • D. 2.01%
Correct Answer: D
Explanation:
Area ∝ r² → increase ≈ 2.01%.