A rocket drawing has the measures as given in the figure. Find its are

1.	A rocket drawing has the measures as given in the figure. Find its area.
Answer» Area = Area of a rectangle + Area of a triangle + Area of a trapezium For rectangle length l = 120 – 20 – 20 cm = 80 cm Breadth b = 30 cm For the triangle base = 30 cm Height = 20 cm For the trapezium height h = 20 cm Parallel sided a = 50 cm b = 30 cm ∴ Area of the figure = (l × b) + (12 × base × height) + 12 × h × (a + b) sq. units = (80 × 30) + ( 12 × 30 × 20) + 12 × 20 × (50 + 30) cm² = 2400 + 300 + 800 cm² = 3500 cm² Area of the figure = 3500 cm²

A rocket drawing has the measures as given in the figure. Find its area.

Answer»

Area = Area of a rectangle + Area of a triangle + Area of a trapezium

For rectangle length l = 120 – 20 – 20 cm = 80 cm

Breadth b = 30 cm

For the triangle base = 30 cm

Height = 20 cm

For the trapezium height h = 20 cm

Parallel sided a = 50 cm

b = 30 cm

∴ Area of the figure = (l × b) + (12 × base × height) + 12 × h × (a + b) sq. units

= (80 × 30) + ( 12 × 30 × 20) + 12 × 20 × (50 + 30) cm²

= 2400 + 300 + 800 cm²

= 3500 cm²

Area of the figure = 3500 cm²