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January 31, 2015

January 31, 2015

Posted by **Jerald** on Wednesday, March 6, 2013 at 6:31pm.

A.450

B.638

C.43

D.294

D?

This circle has a radius of 8 What is the area of this circle?

A.48

B.72

C.192

D.64

C?

Which formula is the best choice for calculating the perimeter of a rectangle?

A.p=Lxw

B.p=2(L)x w

C.p=L+w

D.p=2(L)+2(w)

A?

- Math -
**Ms. Sue**, Wednesday, March 6, 2013 at 6:41pmYour first answer is correct.

None of my answers match your choices in the second problem.

Your third answer is wrong.

http://www.basic-mathematics.com/perimeter-of-a-rectangle.html

- Math -
**Jerald**, Wednesday, March 6, 2013 at 6:44pmPi only means 3 for us. Not any of the other numbers if that helps.

- Math -
**Jerald**, Wednesday, March 6, 2013 at 6:45pmBecause I thought the formula for an area of a circle is π(r)^2

- Math -
**Ms. Sue**, Wednesday, March 6, 2013 at 6:55pmOK. If you're using 3 for pi, then your answer is right. Most people use 3.14 for pi.

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