if the total surface area of a cylinder of height 12 cm is 2288 cm square, find it's radius.
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if the total surface area of a cylinder of height 12 cm is 2288 cm square, find it's radius.
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Answer:
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Answer:
surface area of cylinder= 2πrh+2πr²
2288=2×3.142×r×12+2×3.142×r²
2288=6.284×r×14×3.142×r²
2288=6.284×r×43.988×r²
2288=r³(cube)×276.421
2288÷276.421=r³(cube)
8.28=r³(cube)
r=∛8.28
r=2.02
hope this helps!