Math, asked by swayamshreekar, 1 year ago

the radi of two circle are 19cmand 9cm respectively . find the radius of the circle which has circumference equal to the sum of the circumference of the two circle.

Answers

Answered by ankit6390
3
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Answered by hdewangan
2
We know that,
Circumference of circle = 2×22/7×r

C1 = 2×22/7×19
= 836/7

C2 = 2×22/7×9
= 396/7

Sum of Circumference = C1+C2
= 836/7 + 396/7
= 1232/7
= 176

Circumference of circle formed = 176
2×22/7×r = 176
44/7×r = 176
r = (176×7)/44
r = 1232/44
r = 28

So the radius of circle whose circumference is equal to sum of circumference of two circle = 28.

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