Question

Difference between the circumference and the radius of a circle is 37 m find the diameter of the circle

Answer 1

Let the radius be x
Circumference=2πx
=44x/7
By the problem,44x/7-x=37m
or,37x/7=37m
or,37x=259m
or,x=7m
So,Radius=7m
So,Diameter=2×Radius
=2×7m
=14m

Answer 2

Radius = r

$circumference = 2\pi \: r$
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Given that difference between circumference and radius is 37

So,

2πr - r = 37

44r/7 - r =37

(44r-7r)/7 = 37

37r = 37×7

r = (37×7)/37

r = 7

Radius = 7 m

Diameter = 2 × radius

Diameter =2×7=14m


I hope this will help you

-by ABHAY