the measure of an interior angle of a regular polygon is 1400, then find its number of sides.
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Answer:
A regular polygon has all its interior angles equal to each other.
Step-by-step explanation:
(n - 2) * 180 / n= 140 degree
180n-360/n=140 degree
180n-360=140n
180n-140n=360
40n=360
n=360/4= 90
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