Question

Find the area of a circle with a diameter of 4.Either enter an exact answer in terms of e or use 3.14 for fi and enter your answer as a decimal.units2

Answer 1

Given data:

The given diameter of the circle is D=4.

The expression for the area of the circle is,

$A=\frac{\pi}{4}(D)^2$

Substitute the given value in the above expression.

$\begin{gathered} A=\frac{3.14}{4}(4)^2 \\ =12.56unit^2 \end{gathered}$

Thus, the area of the circle is 12.56 sq-units.