Question

The formula for the area of a circle is A = ar2 where A is the area ander is the radius.

Estimate the area of a circle where it = 3.142 and r = 8.6 cm.​

Answer 1

The area of circle is 232.23 cm²

Explanation:

The formula used to calculate area of circle is:
`\mathbf{A=\pi r^2}`

Where
`\pi` = 3.14 and r is radius

We are given radius r = 8.6 cm

We need to find area of circle.

Using formula and finding area of circle

`A=\pi r^2\\A=3.14*(8.6)^2\\A=3.14* 73.96\\A= 232.23 \ cm^2`

So, the area of circle is 232.23 cm²