Question

To the nearest tenth, what is the area of a circle whose diameter is 4.4 feet?

Use 3.14 for π.

Enter your answer in the box.

ft²

Answer 1

15.21= 15.2 when rounded

Explanation:

the formula for finding the area of a circle with the diameter is
A= 1/4 × π ×d^2

Answer 2

15.21

Explanation:

In order to find the area, you must find the radius first.

The diameter (4.4) divided by 2 = radius (2.2)

The area of a circle is pi times the radius squared (
`A = \pi r^(2)`).

In this situation, r, or radius =2.2.

`A = \pi 2.2^(2)`

`\pi`
`2.2^(2)`= the area, 15.2053084434.

By rounding to the nearest hundredth, you get 15.21. The second number after the decimal is your hundredths place. If the number after the decimal is 4 or less, just remove all of the digits to the right. If it's five or more, like this case where it is 7, you add 1 to the hundredths place, then you remove all of the digits to the right.