Question

What is the area of the circle below, in terms of ?90 metersO 457O 907O 1807O 81007134

Answer 1

Step 1: Write out the formula

`\begin{gathered} \text{Area of a circle = }\pi r^2 \\ \text{where } \\ r=\text{ the radius of the circle} \end{gathered}`

Step 2: Write out the given values and substitute them into the formula

`r=90m`

Therefore,

`\text{ the area of the circle = }\pi(90)^2=\pi*8100=8100\pi m^2`

Hence, the area in terms of pi is

`8100\pi`

The last choice is the correct answer