Question

an iron pipe is 21 m long and its exterior diameter is 8 cm if the thickness of pipe is 1 cm and iron weight is 8 gram per centimetre cube find the weight of pipe

Answer 1

this is urgent answer

Answer 2

Hey your answer is here:- ⬇⬇⬇

Height of the pipe= 21m = 21×100= 2100cm
Exterior diameter= 8cm
Exterior radius[R] = 8/2 = 4cm
Thickness = 1cm
Interior radius [r] = Exterior radius - Thickness
= 4cm - 1cm
= 3cm
Volume of the pipe = pie(R^2 - r^2)h
=[22/7(4^2 - 3^2)2100]cm^3
=[22/7(16-9)2100]cm^3
=[22/7×7×2100]cm^3
=[22×7×300]cm^3
=46200cm^3
WEIGHT = VOLUME × DENSITY
= 46200 × 8
= 369600gm


IN KILOGRAM = 369600/1000
= 369.6kg
{THIS STEP IS OPTIINAL TO DO. IF YOU WANT YOU CAN DO OTHERWISE LEAVE IT.}

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