Five angles of a hexagon are equal. If the sixth angle measures 145∘, then the measure of each of the five angles is
40
In a hexagon, no of sides, n = 6
Let the equal angles measure x∘ each, then, sum of the interior angles =(2n−4)×90∘=8(90∘)=720∘∴5x∘+145∘=720∘5x=575∘x∘=115∘