Question

If the sum of interior angles of a polygon is 3780 degree find the number of sides

Answer 1

Sum of interior angles = (2n-4)*90
= 3780 = (2n-4)*90
=> 2n-4 = 3780/90
= 2n-4 = 42
= 2n = 42+4
= 2n = 46
= n = 46/2
= n = 23 sides

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Answer 2

sum of interior angle= (2n-4)×90

=3780= 2n-4×90

=2n-4 =3780÷90

2n-4=42

2n=42++4

2n=46

n=46÷2

n=23 sides