A rectangular piece of paper 11cm x 4 cm is folded
without overlapping to make a cylinder of height
4cm. Find the surface area of the cylinder.
Answers
Answered by
5
Answer:
Circumference of the cylinders' base =11cm.
2πr=11
2×22/7×r=11
r=7/4
Total surface area of cylinder=2πr(r+h)
=>2×22/7×7/4(7/4+4)
=>253/4
=>63.25cm²
Similar questions