Question

the ques is 4th one plzzz ans fast......gve the full solution..plzzz

Answer 1

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
(n-2) * 180 = 5 * 90 + ( n-5) * 195
180n - 360= 450 + 195n - 975
15n = 165
n = 165/15 = 11
thus, it has 11 sides.