Question

If the circumference of a circle exceeds its diameter by 30, find the radius of the circle.
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Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

Let radius of circle = r

Diameter = 2r

Circumference of circle= 2×pie×r

According to question when diameter is increased by 30 then it will become equal to the circumference of circle.

So,

2r +30 = 2×22/7×r

(The eqn is solved in the attachment)

On solving it we get

r = 7 units.