Question

NO
24.
दो वृत की त्रिज्याओं का योग 140cm है और परिधि का अन्तर 88cm हैं। त्रिज्याएँ निकाले।
The sum of radii of two circles is 140cm and difference of their circumferences is 88 cm. Find
their radii.​

Answer 1

Answer:

let their radii be R and r

then,

R + r = 140 ..... i

and 2π[R - r ] = 88

=> R - r = 14 ......ii

adding i and ii

then,

2R = 154

=> R = 77

now,

putting R = 77 in ii

77 -r = 14

=> 63 = r

so, the radii of the circles are 77 CM and

63 CM

Answer 2

Step-by-step explanation:

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