Question

Find the area and the circumference of a circle with the radius 9yr Use 3.14 for n , and do not round your answer

Answer 1

Given a circle with a radius = r = 9 yr

We will find the circumference of the circle

The circumference = 2π * r

We will use π = 3.14

So, the circumference =

`2\pi\cdot r=2\cdot3.14\cdot9=56.52`

So, the answer will be the circumference = 56.52 yr

The area of the circle =

`\pi\cdot r^2=3.14\cdot9^2=3.14\cdot81=254.34`

So, the area of the circle = 254.34 yr^2