Area of the shaded portion is
Consider given the figure,
Required area =area of rectangle ABCD –area of triangle AEF-area of triangle EBC
=(18×10)−(12×6×10)−(12×8×10)
=180−30−40
=110cm2
Question 77
In figure, what is the ratio of the areas of
a) shaded portion I to shaded portion II?
b) Shaded portion II to shaded portion III?
c) The shaded portion I and II taken together and shaded portion III?