Question

What is the exact area of a circle whose diameter is 24 cm?

Answer 1

the area of a circle is A=πr^2

Answer 2

150.72?

Answer 3

\(\large\color{#c910a6}{A=πr^2}\)
the radius is half of the diameter so r=12.
\(\large\color{#c910a6}{A=π12^2}\)

Answer 4

nope. what is 12 * 12 ?

Answer 5

144

Answer 6

3.14159265358979x144=452.38934211692976

Answer 7

yep times pi. (use calculator)

Answer 8

452.16

Answer 9

but thats not a answer

Answer 10

452.39 but close enough.

Answer 11

It wants the exact area, so just leave it with pi

Answer 12

\(\sf\large 144\pi\) is the exact value. Not some decimal number.

Answer 13

A. 576cm
B.144
C.48
D.24

Answer 14

Copy pasting?

Answer 15

huh?

Answer 16

When you copy paste, you do realize that pi is an image in your answer choice and that you can not copy paste images?

Answer 17

yes.

Answer 18

Please do not copy and paste your problems. If people are going to spend time to help you, you should at least spend the time to ask your question as clearly as possible.
~ http://openstudy.com/code-of-conduct

Answer 19

ok