Question

Area of a circle of radius 98 cm. ​

Answer 1

Given:-

Radius of the circle is 98cm

To find:-

The area of the circle.

Formula to be used:-

Area of a circle = π$r^2$

Solution:-

r = 98cm

∴ area of circle = π$r^2$

                         = $\frac{22}{7}$ × 98 × 98

                         = 22 × 14 × 98

                         =  30,184$cm^2$

More to know:-

Perimeter of a circle = 2πr

Area of a sector = Θ/360° × π$r^2$where, Θ = central angle of the sector

Answer 2

Step-by-step explanation:

Given :-

Radius of the circle is 98 cm.

To Find :-

The area of the circle.

Formula to be used :-

Area of the circle =

$\pi \: r ^{2} \:$

Solution :-

$r \: = \: 98 \: cm \: \\ \\ hence \: area \: of \: a \: circle \: = \: \pi \: r \: ^{2} \\ = \: 22 \div 7 \: \times 98 \times 98 \\ = 22 \times 14 \times 98 \: \\ = 30184 \: cm ^{2}$

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