Posted by **joshuah** on Sunday, May 23, 2010 at 10:52am.

find area of cirle 3.9cm radius to nearest tenth?

a=pie 3.14 x r squared

3.14 x 3.9(15.21)

3.14 x15.21 =47.75

nearest tenth =47.8cm squared

is this the correct answer?

- math -
**PsyDAG**, Sunday, May 23, 2010 at 11:52am
Yes, you are right!

- math -
**Anonymous**, Monday, January 17, 2011 at 5:38pm
need help with math

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