Question

PLEASE HELP 10 POINTS

Answer 1

Area is 4069.44 m². Circumference is 226.08 m.

Explanation:

Area:

a = r²π

a = 36²π

a = 4069.44

Circumference:

c = dπ

c = 72 × 3.14

c = 226.08

Answer 2

Area: 4069.44

Circumference: 226.08

Explanation:

The equation for the area of a circle is:

pi(r^2)

So they told us to use 3.14 for pi, the r (radius)is found by dividing the diameter (72) by 2 since

r = d/2

r = 72/2 = 36

plug this into the equation for the area of a circle:

3.14(36^2) = 4069.44

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To find the circumference, use the equation for it:

2 x pi x r or pi x d

Let’s use the second equation, since the diameter is already given

2(3.14)(72) = 226.08