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What is the measures of an interior angle and an exterior angle of a regular decagon.

I NEED SOME HELP

User Glenn Bech
by
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1 Answer

3 votes
the interior angle is the supplement of he exterior angle
so interior+exterior=180 and
180-interior=exterior

the interior angle of a ngon is (n-2)/n times 180 degrees

decagon is 10 sided, 10gon
(10-2)/10 times 180=8/10 times 180=144 degrees

exterior=180-interior
exterior=180-144
exterior=36


interior angle is 144 degrees
exterior is 36 degrees
User Artoon
by
8.5k points
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