Posted by Chase on Wednesday, April 24, 2013 at 12:47pm.
I have two questions about two circles.
A.First circle shows half a line measuring 4mm using 3.14 for pie. I came up with an answer that is wrong.:(
B.Second circle same pie but with a line all the way across the circle measuring 18cm. I got this one wrong?
Please help with steps on each? I want to understand what I got wrong so I can do better.

Math Geo help Ms Sue?  Ms. Sue, Wednesday, April 24, 2013 at 12:49pm
What questions are you trying to solve?
Circumference? Area? ??

Math Geo help Ms Sue?  Chase, Wednesday, April 24, 2013 at 12:49pm
area

Math Geo help Ms Sue?  Ms. Sue, Wednesday, April 24, 2013 at 12:55pm
A. Radius = 4
A = pi * r^2
A = 3.14 * 4^2
A = 3.14 * 16
A = 50.24 sq. cm.
B. Radius = 9 cm
Solve this the same was that I solved A.

Math Geo help Ms Sue?  Chase, Wednesday, April 24, 2013 at 1:11pm
I really understand thank you.

Math Geo help Ms Sue?  Ms. Sue, Wednesday, April 24, 2013 at 1:16pm
You're welcome. :)
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