A solid metal cuboid has length 22 cm,width 16 cm and height 10 cm.The cuboid is melted down and all the metal is used to make 20 identical solid cylinders,each of height 14 cm.
Calculate the radius of the cylinder.[use pie=22/7]
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Answer:
the radius of the cylinder is 2cm
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Answer:
Area of cubiod = area of cylinder
Step-by-step explanation:
So area of cubiod is lbh=22×16×10=3,520
ATQ...
Area of cubiod =area of 20 cylinder
Area of cylinder =
Pi r square h
20(22/7*r2*14)
20(22*r2*2)
22(44*r2)=3520
44*r2=3520/22
44*r2 =160
R2=160/44
4 (approx)
Root of 4=2
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