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Each interior angle of a regular polygon is double of its exterior angle. Find thenumber of sides in the polygon.of |
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Answer» Answer: ANSWER Let the number of SIDES in the POLYGON is n Let the measure of EXTERIOR ANGLES be x respectively. ⇒ measure of interior angle =2x ∴n×2x=(2n−4)×90° ⇒nx=(n−2)×90°.....(i) Again, we KNOW that, nx=360° (n−2)×90°=360°[From(i)] n−2=4 ⇒n=6 Hence the number of sides in the polygon are 6. this is your answer |
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