Question

Q9.Name a polygon with nine sides and write the sum of interior angle​

Answer 1

Answer:

geometry, a nonagon (/ˈnɒnəɡɒn/) or enneagon (/ˈɛniəɡɒn/) is a nine-sided polygon or 9-gon.

Internal angle (degrees): 140°

Type: Regular polygon

Dual polygon: Self

Edges and vertices: 9

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Answer 2

Answer:

a polygon with nine sides is known as nonagon ..

Sum of the interior angles = 1260.

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