Math, asked by 7cnishikumari25, 4 months ago

6. If the circumference of a circle exceeds its diameter by 30 cm, find the radius of
the circle ?​


7cnishikumari25: oo
skkeshriecrpdayuh: Ok
Harmanpreetsingh2831: 15 is radius 30 half is 15
7cnishikumari25: right answer is 7cm
skkeshriecrpdayuh: How?
Harmanpreetsingh2831: radius is 7
skkeshriecrpdayuh: no ..
7cnishikumari25: Let 2πr=2r+30  then on solving,

2r(722​−1)=30 

r=2(15)30(7)​=7
Harmanpreetsingh2831: because you have to apply π formala
Harmanpreetsingh2831: ok

Answers

Answered by skkeshriecrpdayuh
3

Answer:

R = 15

Hope it's will help you


7cnishikumari25: right answer is 7cm
skkeshriecrpdayuh: How?
skkeshriecrpdayuh: R =15 is the correct answer
Answered by aryaramakrishnan
16

Answer:

Let 2πr=2r+30

2r(22/7)-1)=30

r=30(7)/2(15)=7

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