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13-02-2021
Mathematics

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How many sides does this regular polygon have?
Pls help

How many sides does this regular polygon have Pls help class=

Respuesta :

13-02-2021

Answer:

9 sides

Step-by-step explanation:

7y + 2y = 180

9y = 180

y =20

so, 2y, the exterior angle is 2 x 20 = 40

Divide 360 by 40 = 9

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