12.The exterior angle of a regular polygon is equal to the one fourth of an interior angle of a regular hexagon. How many sides does the polygon have?Required to answer.
10
12
8
9
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Answer:
ANSWER
sum of all interior ∠s of a regular polygon = 180−x180
∘
(x−2)
each interior ∠=
x
180
∘
(x−2)
sum of all exterior ∠=360
∘
Each exterior ∠=360
∘
/x
Given
x
360
∘
=
4
1
(
x
180
∘
(x−2)
)
⇒x=10
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