Question

Calculate the sizes of the exterior and interior angles of:

a) a regular octagon

b) a regular decagon​

Answer 1

Answer:

a) exterior angle = 360/8 = 45 degree

interior angle = ((8-2)*180)/8 = 135 degree

b) exterior angle =180/12 = 15 degree

interior angle = ((10-2)*180)/10 = 144 degree

sum of interior angles = (n-2)*180

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Answer 2

Answer:

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