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2 years ago

Find the measure of one interior angle of a regular 21-gon.

Mathematics

2 answers:

ExtremeBDS [4]2 years ago

5 0

C step-by-step the coordinate of that is pretty simple to say but hard at the same time

lesya [120]2 years ago

4 0

Measure of sum of interior angles formula (where “n” is number of sides): (n-2)180

(21-2)180
=3420

3420 is the measure of the sum of a regular 21-gon, and to find the measure of only one angle, we need to divide the sum by the number of sides, so
3420/21

= 162.9

the answer is B

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