a cuboid shaped slab of iron whose dimensions are 55 cm by 40 cm by 15 cm is melted and recasted into a pipe. the outer radius and thickness of the pipe are 4 cm and 1 cm respectively. find the lenght of the pipe.
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Length of pipe = 15 m
Step-by-step explanation:
a cuboid shaped slab of iron whose dimensions are 55 cm by 40 cm by 15 cm is melted and recasted into a pipe
Volume of Slab = 55 * 40 * 15
= 33000 cm³
Outer radius of the pipe are 4 cm
Thickness of the pipe = 1 cm
Inner Radius = 4 - 1 = 3 cm
Height of pipe = h cm
Volume of Material used in pipe = π (4² - 3²) h
= (22/7)*7 * h
= 22h
22h = 33000
=> h = 1500 cm
1m = 100 cm
=> h = 15 m
Length of pipe = 15 m
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