1.

In a polygon, there are 5 right angles and theremaining angles are equal to 195° each. Findthe number of sides in the polygon.

Answer»

Let the number of sides of the polygon be n.

therefore the sum of the interior angles of a polygon with sides n is (n-2)* 180.

it is given that there are 5 right angles and remaining angles are equal to 195.

therefore sum of interior angles = 5*90+(n-5)*195

hence,the above given picture is the solution

thus the polygon has 11 sides.



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