Multiple choice

What is the area of the circle whose diameter is equal to the twice of a side of the square whose area is 784 square metre?

  1. $176$
  2. $2504$
  3. $2464$
  4. $284$
  5. $2646$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Square area = 784 m², so side = √784 = 28 m. Circle diameter = 2 × 28 = 56 m. Radius = 28 m. Area of circle = πr² = (22/7) × 28² = (22/7) × 784 = 22 × 112 = 2464 m². Option C (2464) is correct.