find the volume of hollow cylindrical pipe whose inner and outer radius is 7cm and 7.7cm respectively and its height is 3.5m.
Answers
Answer:
don't know.............
Answer:
Volume of material used in making the pipe = \bold {48069\ cm^3}48069 cm
3
Step-by-step explanation:
Given,Height = 3.5 m = 350 cm
Outer radii = 7.7 cm
Inner radii = 7 cm
Inner volume of cylinder = πr²h
= \frac{22}{7}\times 7\times 7\times 350
7
22
×7×7×350
=17150\ cm^317150 cm
3
Outer volume of cylinder = πr²h
= \frac{22}{7}\times 7.7\times 7.7\times 350
7
22
×7.7×7.7×350
= 65219\ cm^365219 cm
3
Volume of material used in making the pipe = Outer volume of cylinder - Inner volume of cylinder
= 65219 - 17150
=\bold {48069\ cm^3}48069 cm
3