Question

maths question solve this....

Answer 1

height =24cm
radius =20/2=10cm
curved surface area of cylinder is 22/7×2×24×10
22/7×480
22×480/7
10560/7cm^3
diameter of copper wire is 4mm
so radius is 2mm=2/10cm
volume is 10560/7cm
volume is 22×2×2×h/7×10×10
88h/700=10560/7
88h/100=10560
h=10560×100/88
h=12000cm