Multiple choice

What is the area of the largest circle that can be cut from a square with each side measuring 7 cm?

  1. 22.5 cm2

  2. 154 cm2

  3. 38.5 cm2

  4. 160 cm2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The largest circle in a square of side 7 cm has a diameter of 7 cm, so radius r = 3.5 cm. Area = pi * r^2 = (22/7) * 3.5 * 3.5 = 22 * 0.5 * 3.5 = 11 * 3.5 = 38.5 cm^2.

AI explanation

The largest circle that can be cut from a square has a diameter equal to the side of the square, giving this circle a radius of 3.5 centimetres. Using the circle area formula of pi times r squared gives 22 over 7 times 3.5 squared. This equals 22 over 7 times 12.25, resulting in an area of 38.5 square centimetres.

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