Question

find sum of a interior angle of a polygon having 8 sides​

Answer 1

Sides=8

⇒ Sum of interior angle of polygon =(2n−4)90

                                                            =(16−4)90

                                                            =12×90

                                                            =1080

Hence, the answer is 1080.

hope this helps

Answer 2

The sum of interior angles of a polygon having 8 sides is 1080°

Given :

A polygon with 8 sides

To find :

The sum of interior angles

Formula :

The sum of interior angles of a polygon with n sides = ( n - 2 ) × 180°

Solution :

Step 1 of 2 :

Write down the number of sides

Here it is given that the polygon has 8 sides

Step 2 of 2 :

Find sum of interior angles of the polygon

Number of sides = n = 8

The sum of interior angles of the polygon

= ( 8 - 2 ) × 180°

= 6 × 180°

= 1080°

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