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Since 1440 10 144 each interior angle in a regular decagon has a measure of 144.
What is the interior angle of a regular decagon. A decagon has 10 sides and 10 angles. See exterior angles of a polygon. Exterior and interior angles are supplementary that is sum to 180o.
Exterior and interior angles are supplementary that is sum to 180o. Therefore the interior angle of a regular decagon is 180o 36o. So the measure of the central angle of a regular decagon is 36 degrees.
N is the number of sides of a polygon. An irregular decagon has sides and angles that are not all equal or congruent. Make sure each triangle here adds up to 180 and check that the pentagon s interior angles add up to 540 the interior angles of a pentagon add up to 540.
Also each exterior angle has a measure of 36. Each exterior angle for a regular decagon is 360o 10 36o. The sum of the interior angles of a decagon is 10 2 180 1440 in a regular decagon all the angles are congruent at 1440 10 144 4 5 6 asked in math.
See interior angles of a polygon. Part a we know that. In this problem regular decagon.
Part b the measure of each interior angle of a regular decagon is. A regular decagon has equal interior angle measures. Its interior angles add up to 3 180 540 and when it is regular all angles the same then each angle is 540 5 108 exercise.
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