Math, asked by sudhanaik909, 1 year ago

the diameter of a circular track is 70 m find the distance covered by an athlete if he takes 3 complete round along the track

Answers

Answered by sreelekhaRath
6
DIAMETER = 70.m
RADIUS= 70/2=35m
AS THE ATHELETE RUNS AROUND IT. SO HE COVERS THE CIRCUMFERENCE.
CIRCUMFERENCE =
2\pi
2×22/7×35=44/7×35=44×5=220.m
AS HE RUNS 3 TIMES SO.
220×3= 660.m
so he cover 660m2

sudhanaik909: thanks
sreelekhaRath: welcome
sudhanaik909: 1more question if a wire is bent form of square ofside 14 centimetre if the same wire is bent in the form of circle find the circumference of the circle and also find area of circle
Answered by aaravshrivastwa
7
Given,
Diameter = 70 m

Radius (r) = d/2 = 70/2 = 35 m

As we know that,

Circumference = Distance Covered = 2πr

=> D = 2 x 22/7 x 35

=> D = (44 x 5) m

=> D = 220 m

As Athlete complete 3 rounds.

=> Total Distance = (3 x 220) m = 660 m

Hence,

Total Distance coverd = 660 m



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