A hollow iron pipe has an external diameter of 6 inches and an internal diameter of 4…
MATHEMATICS · Multi-part · CBSE · Mathematics · Surface Areas and Volumes · Surface Areas and Volumes
Problem
A hollow iron pipe has an external diameter of 6 inches and an internal diameter of 4 inches. The length of the pipe is 1.2 m. The density of iron is 7.8 g/cm³.
Based on this information, answer the following:
(i) Convert all linear measurements to centimetres and write them clearly.
(ii) Compute the volume of iron used in making the pipe, expressing your answer in cubic centimetres.
(iii) Hence determine the mass of the pipe in kilograms, correct to one decimal place.