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The sum of the radii of two circle is 140 cm and the different of their circumference is 88 cm. Find the diameters of the circles

akshaya , 10 Years ago
Grade 12th Pass
anser 2 Answers
Ravi

Last Activity: 10 Years ago

r1+r2=140 ...(1)

2.pi.(r1-r2)=88
r1-r2= (88.7)/(2.22)=28
r1-r2=28 ...(2)

Use equation 1 and 2 to solve for r1 and r2.
Find D1=2r1 and D2=2r2

divya

Last Activity: 10 Years ago

diameters are 126 and 154 resp.

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