Math question
posted by Anne .
I don't understand how to find the aproximate area of a shaded region
This problem has a big cirlce with 1/4 shadded with a radius of 20 cm.
the answer chocies are
A. 90 cm squared
B. 270 cm squared
C. 314 cm squared
D. 1.256 cm squared
how do I find the answer?
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