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7 votes
7 votes
The diameter of a circle
Is 8 inches . What is the area ?

The diameter of a circle Is 8 inches . What is the area ?-example-1
User Michael Coker
by
2.7k points

2 Answers

19 votes
19 votes

Hello There!


GraceRosalia is here to help you!

We are given that

d=8 in.

We know that the radius is 1/2 of d or r=d/2. So the radius is 4.

However, we have to find the area.

The formula for the area of a circle is:

A=
\pi
r^(2)

We know that r=4, so all we have to do is plug it into the formula:

A=
\pi (4)^(2)

Remember that only the radius is squared.

A=
\pi *16

A=50.265

Let's round to the nearest tenth:

A=50.3

Hope this helps you!


GraceRosalia

Let me know if you have any questions!

User Ashik Vetrivelu
by
2.5k points
16 votes
16 votes

Answer:

radius=d/2 = 8/2 = 4inch.

Explanation:

area = πr²

16π(inch)². or 352/7 (inch)².

hope this helps you.

User John Strickler
by
2.4k points