Question

The total number of degrees in the sum of the interior angles of two regular polygons is 1980. The sum of the number of diagonals in the two polygons is 34.
What is the positive difference between the numbers of sides of the two polygons?
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Answer 1

Answer:

The formula for sum of interior angles is S = (n - 2) * 180. Therefore, 1980° = (n - 2) * 180. or, (n - 2) = 1980 / 180 = 11

Answer 2

Answer:

The formula for sum of interior angles is

Step-by-step explanation:

S=(n-2)* 180 therefore 1980°=(n-2)*

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

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