Question

the sum of angles of a polygon is 1980° what is the sum of angles of a polygon with one side less?​

Answer 1

Step-by-step explanation:

Ans = 1980 degrees - 180 degrees = 1800 degrees

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Answer 2

Answer:

The formula for sum interior angle is s=(n-2)* 180

Therefore, 1980°= (n-2)* 180

or, (n-2)= 1980/180 = 11

or, n= 13

Therefore there are 13 sides is total.

each angle will be 1980/13.

with one side less it will be (1980*12)/13= 1827.69°

with one side more it will be (1980*14)/13= 2132.30°