Question

Find the area of a circle with diameter 18 ft Use the value 3.14 for pi, and do not round your answer. Be sure to include the correct unit in your answer.

Answer 1

254.34 ft²

Explanation:

Formula for the area of a circle:
`A=\pi r^(2)`

To solve this problem, all you need to do is plug in the correct values for the variables and solve.

1) In the formula, r stands for radius of the circle, which is half of the diameter. Knowing this, we can find the radius by dividing 18 by 2 to get 9. So, r = 9.

2) The problem also tells us to use 3.14 for pi, so that's a given.

3) With all of this information, we can plug in the appropriate values for each variable to get.
`A=3.14(9^(2))` Now, solve the problem and you should have get
`A=254.34`.