3. Find the total surface area of a
closed cylindrical drum if its
diameter is 30 cm and height is 20
cm. (rt = 3.14) *
(
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Answers
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1
Answer:
3,297 cm²
Step-by-step explanation:
r=15 cm
h= 20 cm
total surface area of cylinder =2×pi×r(r+h)
=2×314/100×15(15+20)
=2×314/100×15×35
=3,297 cm²
the answer is 3,297cm²
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