Question

Find the area of a circle with a diameter of 16.

Either enter an exact answer in terms of piπpi or use 3.14 for piπpi and enter your answer as a decimal.

Answer 1

64π = area
200.96 = area

Explanation:

Diameter = radius * 2

16 = 2r

radius = 8

Radius^2 * π = area

8^2 * π = area

64π = area

64*3.14 = area

200.96 = area

Hope this helped!!

Answer 2

64π or 200.96

Explanation:

The area of a circle is
`\pi r^2`. The radius of the circle is half the diameter, which is 16/2 = 8. The area of the circle is 64π.