Which of the following is not true for an exterior angle of a regular polygon with n sides ?
( a ) Each exterior angle = 360 degrees/n
( b ) Exterior angle = 180 ° - Interior angle 360 degrees
( c ) n = 360 degrees / exterior angle
( d ) Each exterior angle = (n-2) x 180 degrees/n
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answer is D because it is the formula for finding each interior angle..... the other is true because...
A ..we know the sum of all exterior angles is 360 ..so each exterior angle will be 360 /no.of sides of polygon..
B. we know the straight line is of 180 degree...so the exterior angle will be 180 -interior angle....
C..we know that each exterior angle is 360/n. ..so no.of sides will be 360/exterior angle...
A,B,C are proved why they are true....
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