Question

find the area of the shaded portion in each case​

Answer 1

Answer:

1. Area of the square = 10 × 10 = 100m²

Area of unshaded portion= 5 × 5 = 25 m²

therefore, area of shaded portion = 100- 25 = 75m²

2. Area of rectangle = 30 × 19= 480m²

area of unshaded portion= 28 × 17 = 376m²

therefore, area of shaded portion= 480 - 376 = 104 m²

3. Area of rectangle= 60 × 40 = 2400m²

area of unshaded portion= 56 × 36 = 2016m²

therefore, area of shaded portion= 2400- 2016 = 284 m²

Step-by-step explanation:

hope it helps

Answer 2

Answer:

1) 75m^2 2)94m^2 3) 384m^2

Step-by-step explanation:

1. Area of shaded region = area of (bigger square-smaller square)

= (10*10) - (5*5) = 100-25 = 75 m^2

2. Area of shaded region = area of (bigger rectangle-smaller rectangle)

= (30*19) - (28*17) = 570-476 = 94 m^2

3. Area of shaded region = area of (bigger rectangle-smaller rectangle)

= (60*40) - (56*36) = 2400-2016 = 384 m^2