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The curved surface area of a cylinder is 176cm2nd its base area is 38.5cm2. Find the volume of the cylinder and justify your answer.

Sub Grade: 9

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308cm2

390cm2

309cm

308cm3

answer is D.

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Detailed Solution

Given
𝝿r2 = 38.5 cm2
2𝝿rh= 176 cm2
𝝿r2= 38.5
r=√38.5*7/22
r= 3.5 cm
2𝝿rh= 176
h= 176*7 /22*3.5*2
h= 8 cm
Volume of cylinder = 𝝿r2h
= 22/7*(3.5)2*8
y= 308 cm3

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