the capacity of a closed cylinder is 141.3 cm³ its height is 5 cm find its: radius and total surface area
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height= 5 cm
therefore volume =π r^2 h
22/7 * r^2 * 5
110r^2/7cm^3
but the volume is 141.3 cm^3
therefore 110r^2/7=141.3
110r^2=141.3*7
110r^2= 9891
r^2=9891/110
r=√9891/110
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