Find the sum of the angle measures of a decagon
Asked by admin @ in Math viewed by 288 People
What is the sum of the interior angle measures of a regular decagon? ° What is the measure of each interior angle of a regular decagon? °
Answered by admin @
A decagon has 10 sides.
Find the sum of angles in a decagon:
Sum of interior angles of a polygon is ( n - 2 ) x 180 where n is the number of sides.
Sum of interior angles = (10 - 2) x 180
Sum of interior angles = 1440º
Find the measure of each angle:
10 angles = 1440
1 angle = 1440 ÷ 10 = 144º
Answer: (a) 1440º (b) 144º
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