4 years ago

I NEED HELP PLEASE, THANKS!!!

Mathematics

1 answer:

denpristay [2]4 years ago

3 0

Answer:

C. 105 $mm^2$

Step-by-step explanation:

The formula for a regular polygon is:

$\frac{1}{2}pa$ → p is the perimeter and a is the apothem

$\frac{1}{2} (42)(5)$

105

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