Question

Claire has a hot tube with a diameter of 7feet.She wants to purchase a cover to protect the hot tub.What is the area of the cover

Answer 1

Answer:

38.465 ft²

Step-by-step explanation:

the area of a circle can be calculated using the following formula:

$A=\pi *r^2$

the radius is half of the diameter:

$\frac{1}{2} *7=3.5$

$\pi *3.5^2=38.465\\\pi * 12.25 = 38.465$