Question

From a circular sheet of radius 3 cm, a circle of radius 1.5 cm is removed. Find the area of the remaining sheet. (Take π = 3.14)

Answer 1

Step-by-step explanation:

area of the circle = πr^2

=3.14×3^2

=28.26

a circle of radius removed area = 28.26-1.5

=26.76

Answer 2

Answer:

Radius of the circular sheet = 4 cm

∴ Area = πr square = π × 4 × 4 = 16π cm square

Radius of the circle to be removed = 3 cm

∴ Area of sheet removed = πr square = 9π cm square

Area of the remaining sheet

= (16π – 9π) cm square = 7π cm square

= 7 × 3.14 cm square = 21.98 cm square

Hence, the required area = 21.98 cm square

Step-by-step explanation:

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