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The diameter of circle Z is 5 in. What is its area in terms of pi?

2.5pi squared
5pi squared
6.25pi squared
25pi squared

Please help! I can't figure this out:(

6 answers

A = pi * r^2
3.14 * 2.5^2 = 19.634...

I'm confused!:( None of those are an option. What am I doing wrong?
The question asks the area in terms of pi.

3.14 * 2.5^2
Oh, I figured it out! After the result, divide by pi:)
6.25?
No.

2.5pi squared
It's 6.25. Ms. Sue is incorrect.