Question

the inner circumference of a circular track is 440 m,find its diameter also find the area of a circular track

Answer 1

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Answer 2

Given :

Inner circumference of a circular track is 440 m

To Find :

find its diameter also find the area of a circular track

Solution:

Circumference of circular park = 440 m

Circumference of circle =$2 \pi r$

So, $2 \pi r = 440$

$2 \times \frac{22}{7} \times r = 440$

$r= \frac{440 \times 7}{2 \times 22}$

r= 70

Area of circular field =$\pi r^2 = \frac{22}{7} (70)^2 =15400 m^2$

Hence The area of circular track is 15400 sq.m,