How many cubic centimetres of metal will be required to form a hollow cylindrical tube which has inner radius 8cm and outer radius 15cm and height 7cm
Answers
3542 cm³ of metal will be required to form a hollow cylindrical tube with inner radius 8 cm , outer radius 15cm & height = 7 cm
Step-by-step explanation:
Cylinder is hollow
so Volume of Metal Required = Outer volume of cylinder - inner volume of cylinder
Volume of cylinder = π R²h
R = Radius
h = height
Volume of outer cylinder = π * 15² * 7
using π = 22/7
Volume of outer cylinder = 22 * 15²
Volume of inner cylinder = π * 8² * 7
= 22 * 8²
Volume of Metal Required = 22 * 15² - 22 * 8²
= 22 * 23 * 7
= 3542 cm³
3542 cm³ of metal will be required to form a hollow cylindrical tube
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