the dimensions of a solid iron cuboid are 4.4 ×2.6 × 1.0. It is melted and recast into a hollow cylindrical pipe of 30 cm inner radius and thickness 5 cm. Find the length of the pipe
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Answer:
Step-by-step explanation:
Volume of cuboid = 4.4 × 2.6 × 1 m3
Inner and outer radii of cylindrical pipe = 30 cm, 35 cm
Volume of material used = π/1002 (352 - 302) × h m3
= π/1002 × 65 × 5h m3
Now, volume of material used = volume of cuboid
π/1002 × 65 × 5h = 4.4 × 2.6
h = 112 m
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the answer is 1.12 m check it again
you have forgot to convert cm in meter
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