Question

In the given figure, ABCD is a rectangle with length = 45 m and breadth =
24 m. In ∆ADE, EF ⊥ AD and EF = 21m. Calculate the area of the shaded
region.

Answer 1

Answer:

ANSWER:

(i) Length = 24.5 m

Breadth = 18 m

∴ Area of the rectangle = Length × Breadth

= 24.5 m × 18 m

= 441 m2

(ii) Length = 12.5 m

Breadth = 8 dm = (8 × 10) = 80 cm = 0.8 m [since 1 dm = 10 cm and 1 m = 100 cm]

∴ Area of the rectangle = Length × Breadth

= 12.5 m × 0.8 m

= 10 m2