Respuesta :

The value of r is 4 feet, the correct option is A.

What is the area of the circle?

The area of a circle is the region occupied by the circle in a two-dimensional plane.

Given

The area of circle Z is 64 ft2.

According to the following formula, we must find the radius of the circle:

[tex]\rm r =\sqrt{\dfrac{Area}{\pi }}[/tex]

Substitute all the values in the formula

[tex]\rm r =\sqrt{\dfrac{Area}{\pi }}\\\\\rm r =\sqrt{\dfrac{64}{3.14}}\\\\\rm r =\sqrt{20.38}\\\\r=4.5[/tex]

Hence, the value of r is 4 feet.

To know more about the area of the circle click the link given below.

https://brainly.com/question/19164857