The measure of each interior angle of a regular polygon is five times the measure of its interior angle. Find: (i) measure of each interior angle, (ii) measure of each exterior angle and (iii)number of sides in the polygon
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Solution
1)Let x be interior angle of the polygon,then x=5(180-x) x=5×180-5x 6x=900 x=900/6=150°
2) Exterior angle=180-x =180-150 =30° 3) number of sides of polygon=360/30 =12