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.

The area of circle is 232.23 cm²

Step-by-step explanation:

The formula used to calculate area of circle is:

Where = 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

So, the area of circle is 232.23 cm²

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)