Question

The radius of a circle is 6.3 cm. Calculate the area and circumference of circle.

Answer 1

Radius=6.3cm

Area of circle= pi*r^2

=3.14*6.3*6.3

=3.14*39.69

=124.6266 cm^2

Circumference of circle=2*pi*r

=2*3.14*6.3

=3.14*12.6

=39.564 cm

Answer 2

Answer:

Circumference = 39.5 cm

Area = 124.6 cm^2

Step-by-step explanation:

Radius = 6.3 cm

Therefore,

Area = pi * r^2

= (22/7) × (6.3)^2

= 124.6 cm^2 OR 125 cm^2

And,

Circumference = 2 * pi * r

= 2 × 22/7 × 6.3

= 39.5 cm OR 40 cm

Hope it helps!!

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