Question

Q 9 answer me its urgent please

Answer 1

volume of the metallic cylindrical pipe = 748 Cm³

length of the cylindrical pipe h =14 cm

external radius of the pipe R = 9 cm

let the internal radius of the cylindrical pipe be r cm.

therefore the volume of the metallic pipe= π(R1²-r2²)h

therefore,

thickness of the metallic pipe = R-r=9-8=1 cm