Question

Choose the correct
4.A regular convex polygon with 20 sides measure:
A)160° each interor angle B)18° each exterior angle C)18° each central angle D)All are correct

Answer 1

(B) is the correct answer.

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Answer 2

No. of sides → 20

Exterior angle → 360⁰

                               n

{ n refers to the number of sides in the polygon }

→ 360⁰

     20

→ 18⁰

Interior angle → 180⁰ - exterior angle

→ 180⁰ - 18⁰

→ 162⁰

So only (B)√ is correct.

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