Question

give me answer please ​

Answer 1

Answer:

In geometry, an angle of a polygon is formed by two sides of the polygon that share an endpoint. For a simple polygon, regardless of whether it is convex or non-convex, this angle is called an interior angle if a point within the angle is in the interior of the polygon.

Answer 2

Answer:

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Each interior angle of Pentagon=(2*5-4)*90/5

=(10-4)*18 =6*18 =108

Each interior angle of decagon,

=(2*10-4)*90/10 =(20-4)*9 =16*9 =144

The Ratio=108/144 =9/12 =3/4

Hope it will be helpful :)