Question

4) Find the area of the shaded region :​

Answer 1

Answer:

746

Step-by-step explanation:

shaded area= 20×50 -《(22÷7×7×7)+(10×10)》

= 1000-(154+100)

= 746

Answer 2

Area of the shaded region = Area of the rectangle - (Area of the square + Area of the circle)

• Area of the square :

Side = 10 cm

Area = 4 × side

= 4 × 10 cm

= 40 cm²

• Area of the circle :

Radius = 7 cm

Area = πr²

= 22/7 × 7cm × 7 cm

= 154 cm²

• Area of the rectangle :

Length = 50 cm

Breadth = 20 cm

Area = length × breadth

= 50 cm × 20 cm

= 1000 cm²

• Now, Area of the shaded region :

Area of the rectangle - (Area of the square + Area of the circle)

=> 1000 cm² - (40 cm² + 154 cm²)

=> 1000 cm² - 194 cm²

=> 806 cm²

Therefore, the area of the shaded region is 806 cm².