Question

The diameter of the circular railroad crossing sign below is 16 inches. Find the area of the sign. Use 3.14 for π.

A=πr2=π×r×r i well give you 15 points

Answer 1

200.96

Explanation:

Area is

`\pi {r}^(2)`

Where r is the radius, we can find the radius since the radius is half of the diameter. Since the diameter is 16, the radius is 8. Now let plug it in the equation.

`\pi(8) {}^(2)`

Which equals

`64\pi`

Use 3.14 as pi then multiply

`64 * 3.14`

Which is 200.96