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Two Circles Touch Each Other Externally. The Distance Between Their Centres Is 14 Cm And The Sum Of Their Areas Is 130 Cm^2. Find Their Radii? |
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Answer» Lets assume the radius of 1st circle = x CM. so, the radius of 2ND circle = (14-x)cm. (pi*x*x)+(pi*(14-x)*(14-x))=130 By SOLVING above eq. x = 11 or 3. Lets assume the radius of 1st circle = x cm. so, the radius of 2nd circle = (14-x)cm. (pi*x*x)+(pi*(14-x)*(14-x))=130 By solving above eq. x = 11 or 3. |
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