Question

13. The sum of all interior angles of a regular polygon is 1080. What is the measure of each of
its interior angles?
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Answer 1

Answer:

sum of all interior angles of a polygon =(2n-4)90

1080=(2n-4)90

1080÷90=2n-4

12=2n-4

2n=12+4

n=16÷2

n=8

measure of each interior angle of a regular polygon =1080÷8

=135 degrees