Question

a circle has a radius of 11 centimeters. find the area of the circle in terms of $pi$. use the keypad to enter your answer in the box. $a = squarepi \text{ cm}^2$

Explanation:

Step1: Recall area formula

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

Step2: Substitute radius value

Given $r = 11$ cm, substitute it into the formula: $A=\pi\times(11)^{2}$.

Step3: Calculate the result

$(11)^{2}=121$, so $A = 121\pi$ $cm^{2}$.

Answer:

$121$