Question

Find the circumference of the circle. Round your answer to the nearest hundredth

in the center of the circle is 4.5 ft.
a 14.14
b 15.90
c 16.82
d 17.43

Answer 1

2* π *radius

or

π*diameter

Answer 2

a. 14.14 ft²

Explanation:

The measurement given refers to the diameter of the circle. The formula for the circumference and area uses the radius of a circle, therefore it is always safer to use radius instead of diameter

The radius is half of the diameter, which is 2.25 ft.

`A=2*r*\pi \\A=2*2.25*\pi \\A=14.14ft^(2)`