2) A metal cuboid of dimensions 22 Cm X 15 Cm X 7.5 Cm was melted and cast into a cylinder of height 14 Cm.
What is its radius?
Sof the cylinder is 1760 Cm?
Answers
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Answer:
volume of cuboid = volume of cylinder this find the radius
Answered by
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Step-by-step explanation:
1 ) Dimensions of the metal cuboid ,
Length = l = 22 cm
Breadth = b = 15 cm
Height = h = 7.5 cm
2 ) Height of the cylinder ( H ) = 14 cm
Let radius of the cylunder base = r cm
According to the problem given ,
Metal Cuboid melted and cast into a cylinder.
Therefore,
Volume of the cylinder = volume of the metal cuboid
Pi × r^2 × H = lbh
22 / 7 × r^2 × 14 = 22 × 15 × 7.5
22 × r^2 × 2 = 22 × 15 × 7.5
r ^2 = ( 22 × 15 × 75 ) / ( 22 × 2 × 10 )
r^2 = 225 / 4
r ^2 = ( 15 /2 )^2
r = 15 / 2 cm
r = 7.5 cm
Radius of the cylinder = r = 7.5 cm.
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