Question

Find the number of metallic circular disc with 1.5cm base diameter and of height 0.2cm to be melted to form a right circular cylinder of height 10cm and diameter 4.5cm

Answer 1

Number of metallic circular disc= volume of Cylinder
________________
volume of metallic circular disc
=πR^2H/πr^2h
=(4.5/2)^2×10
___________
=(1.5/2)^2×0.2
=450 circular discs..


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Answer 2

Answer:

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