Question

The circumfrence of a circle is 18(pie symbol) find the radius and area of the circle

Answer 1

\[18\pi= \pi d\]
d= diameter.
Solve for d.

Answer 2

\[2\pi r=\pi d\]

Answer 3

Once oyu found , you can divide by 2.

Answer 4

The formula for the circumference of a circle is 2r(pi).

You are given that the circumference is 18(pi). Radius is 9 units, so find area.

Area = \[(\pi)(r ^{2})\]

Answer 5

Once you*

Answer 6

found d*

Answer 7

@hsrikako so the area is 3.14 * 18

Answer 8

No, your radius is 9. So Area is 3.14 * (9^2) or 3.14*(81)