Question

the circumference of a circle exceeds the diameter by 60 cm. find the radius of a circle ​

Answer 1

Answer:

Step-by-step explanation:

C-d=60cm.

We,know that circumference,C=2πr and diameter=2rt

Therefore

C-d=60cm --1

Substituting valves of C and d in eqn 1.

2πr-2r=60

2(πr-r)=60

πr-r=30

r(π-1)=30

r=30/(π-1)

r=30/(22/7-1)

r=30/(22-7/7)

r=30/(15/7)

r=30×7/15

r=2×7

Therefore,r=14cm.

Answer 2

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