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Question 43
Which of the following is not true for an exterior angle of a regular polygon with n sides?
a) Each exterior angle =360n
b) Exterior angle =180 - Interior angle
c) n=360Exterior angle
d) Each exterior angle =(n2)×180n

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Solution

We know that, (a) and (b) are the formulae to find the measure of each exterior angle, when the number of sides and measure of an interior angle respectively are given and (c) is the formula to find the number of sides of the polygon when an exterior angle is given.
Hence, the formula given in option (d) is not true for an exterior angle of a regular polygon with n sides.

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