Question

question
the radius of a circle is 20 m. find its area in terms of π.
answer attempt 1 out of 2
a = m² submit answer

Explanation:

Step1: Recall the formula for the area of a circle

The formula for the area of a circle is \(A = \pi r^{2}\), where \(r\) is the radius of the circle.

Step2: Substitute the given radius into the formula

Given \(r = 20\) m. Substitute \(r = 20\) into \(A=\pi r^{2}\), we get \(A=\pi\times(20)^{2}\).

Step3: Calculate \((20)^{2}\)

\((20)^{2}=20\times20 = 400\). So \(A = 400\pi\)

Answer:

\(400\pi\)