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Temka [501]
3 years ago
11

Find the area of the shaded region. Show your work please

Mathematics
1 answer:
vitfil [10]3 years ago
4 0
So if the formula is A=(pi)r^2, find the area of the entire circle:
A=(pi)(13^2)=530.66cm
then find the area of the little circle:
A=(pi)(3^2)= 28.26cm
then subtract the little circle from the big circle:
530.66cm-28.26cm= 502.4cm
and there you go. Hope this helps!

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-------------------------------------------------------------------------------------------------------------

Similarly, if triangle ABC is congruent to triangle DEF, then angle D = angle A = 49 degrees

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So in short, the answer is choice B) 27; 49

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