Question

The radius of circular pipe is 25 .What length of the tape is requried to wrap around the pipe once

Answer 1

The length of the tape required= Total surface area of the cylinder=2πr(h+r)
$2 \times 22 \div 7 \times 12.5(h + 12.5) =$
Height of the cylinder should be given there.Without the height,we cannot find total surface area.