Question

Please help asap! For a test (25 points)

The diameter of a circle is 4 m. Find its area in terms of π.

Answer 1

Answer: A=12.566

Explanation:

A=πr^2

R=2

π*4=12.566

I don't know how you want the answer rounded so I just rounded it to the nearest thousandths

Answer 2

Answer: 4
`\pi` m^2

Explanation:

The formula to calculate the area of a circle:

`\pi r^(2)`

Given that the diameter of a circle is 4, we can work out that r (the radius) is 2.

(The radius is half of the diameter)

Therefore we can plug in our values:

`\pi 2^(2)`

`2^(2)` = 4

Therefore your answer is:

`4\pi`
`m^(2)`

(Remember your units!)