09-06-2017
Mathematics

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A balloon has a circumference of 11 cm. Use the circumference to approximate the surface area of the balloon to the nearest square centimeter.

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xxcooperjxx xxcooperjxx

09-06-2017

try 38.465cm I'm not good at math but its the best I could do

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jspencer080816 jspencer080816

09-06-2017

C = 2(pi)(r) so 11= 2(pi)(r) if you divide 11 by 2(pi) using pi as 3.14 you get r = 1.752 then plug in the number to S.A. = 4(pi)r^2 you will get approximately 38.55 sq. Cm of surface area.

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