Question

Find the area and the circumference of the circle with the radius 6yd.

who's the value 3.14 for pie and do not round your answers.

be sure to include the correct units in your answers.


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Answer 1

A = 36π yd² ≈ 113.04 yd²

C = 12π yd ≈ 37.68 yd

Explanation:

The formula of an area of a circle:

`A=\pi r^2`

The formula of a circumference of a circle:

`C=2\pi r`

r - radius

We have r = 6yd.

Substitute:

`A=\pi(6^2)=36\pi\ yd^2`

`C=2\pi(6)=12\pi\ yd`

If you want round the answers, then use π ≈ 3.14

`A\approx(36)(3.14)=113.04\ yd^2`

`C\approx(12)(3.14)=37.68\ yd`