Question

question
the diameter of a circle is 11 m. find its area to the nearest whole number.
answer attempt 1 out of 2
a = m² submit answer

Explanation:

Step1: Find the radius

The radius \(r\) of a circle is half of the diameter \(d\). Given \(d = 11\) m, so \(r=\frac{d}{2}=\frac{11}{2}=5.5\) m.

Step2: Use the area formula

The area formula of a circle is \(A=\pi r^{2}\). Substitute \(r = 5.5\) into the formula: \(A=\pi\times(5.5)^{2}=\pi\times30.25\). Using \(\pi\approx3.14\), we get \(A\approx3.14\times30.25 = 94.985\).

Answer:

\(95\)