66 cubic cms of silver is drawn into a wire 1mm in diameter. The length of the wire in mts will be
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Answer:
Ans=84
Explanation:
Diameter = 1mm
Radius=1/2 mm = 1/20 cm
A wire is a 3D shape name cylinder
So Area of cylinder = 22/7 x r x r x height
66= 22/7 x 1/20 x 1/20 x h
66 x 1400 = 11h
92400= 11h
92400/11 = h
h = 8400 cm
1 m = 100 cm
8400 cm = 84 m
So the answer is 84 meters.
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