hrideshbhunjun17 hrideshbhunjun17

02-06-2020
Mathematics

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An exterior angle of a regular polygon is 72°.
(i) what is the size of each interior angle of the polygon?
(ii) Find the number of sides of the polygon.

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TheLazyNobita TheLazyNobita

02-06-2020

Answer:

Exterior angle = 72⁰

As polygon is regular , each interior angle = 180⁰ - 72⁰ = 108⁰

Number of sides :

As the sum of exterior angles is 360⁰ :

n × 72⁰ = 360⁰

n = 360/72 = 5

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dhshshshsb dhshshshsb

02-06-2020

The answer is 5
.....

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