The sum of the interior angles of a polygon is 540. determine and state the number of degrees in one interior angle of the polygon.

Any polygon with interior angles that add up to 540 must have 5 sides and 5 corners (a pentagon). Assuming it is a regular pentagon, you need to work out what 1/5 of 540 is, which is the same as dividing it by 5. 540/5 = 108. this is the number of degrees in one interior angle of a regular pentagon.

Aand b are independent events because  p(a∣b) =  p (a) = 0.18.