Question
Radha made a picture of an aeroplane with coloured paper as shown in figure. Find the total area of the paper used.

Solution
For Triangular Area I
a = 5 cm b = 5 cm c = 1 cm
Area II = 6.5 x 1 = 6.5 cm2
For Area III
Total area of the paper used
= Area I + Area II + Area III + Area IV + Area V
= 2.5 cm2 + 6.5 cm2 + 1.3 cm2 + 4.5 cm2 + 4.5 cm2
= 19.3 cm2.