In a regular polygon the ratio of the inner and outer angle is 11:7 What is the measure of interior angle?
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let the the inner and outer Angle be 11x and 7x respectively
11x + 7x = 180 (because sum of inner and outer angleregular polygon is 180 degree)
18x = 180
x = 180/18
x = 10
so measure of interior angle = 11*10 = 110
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