Question

The circumference of a circle is m. What is the area , in square meters ? Express your answer in terms of pi

Answer 1

area = m²/2π

Explanation:

∵ circumference of circle = 2πr = m

∴ r = m/2π

∵ area of circle = πr²

∴ area of circle = (m/2π)² × π = m²/2π² × π = m²/2π

hope this helps