Question

In the following figures,find the area of the shaded portion:

Answer 1

Step-by-step explanation:

The area of whole square is 20x20

400

There are three triangle. 1/2*10*20+1/2*10*28+1/2*10*10

1/2*10*20*2+1/2*10*10

200+50

250

Area of shaded reagion 400-250=150cm sq. unit.

Answer 2

Answer :

→ 1/2 × 10²

→ 50 ----(1)

→ 2 × 10 × 20

→ 100 ----(2)

→ 1/2 × 10 × 20

→ 100 ----(3)

→ 20 (20)

→ 400 ---(4)

　

→ 400 - (50 + 100 + 100)

→ 150 cm²

　

Therefore, 150 cm² is the required answer.