Asked by Chase




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.


Answered by Ms. Sue
What questions are you trying to solve?

Circumference? Area? ??

Answered by Chase
area
Answered by Ms. Sue
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.
Answered by Chase
I really understand thank you.
Answered by Ms. Sue
You're welcome. :-)
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