A cuboidal metal of dimensions 44 cm x 30 cm x 15 cm was melted and cast into a cylinder of height 28 cm. find its radius.
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Answered by
34
volume of the cube and cuboid metal of dimensions 44 cm into 30 cm into 15 cm =
l*b*h=44*30*15=19800cm^3
given height of the cylinder = 28 CM
we also know volume of a cylinder equals
Pi R Square h
now now we shall equate it
π×r^2×h=19800
r^2= 19800× (7/22)×(1/28)
r^2= 225
r= root of 225
i.e 15cm
l*b*h=44*30*15=19800cm^3
given height of the cylinder = 28 CM
we also know volume of a cylinder equals
Pi R Square h
now now we shall equate it
π×r^2×h=19800
r^2= 19800× (7/22)×(1/28)
r^2= 225
r= root of 225
i.e 15cm
can you please mark it as the brainliest
Answered by
12
Heya......
Here's your answer......
volume of a cuboid = lbh = 44×30×15
volume of a cylinder = πr²h = (22/7)×r²×28
∵ volume of a cuboid = volume of a cylinder
∴ 44×30×15 = (22/7)×r²×28
solving for r = 15cm
Thanks...!!!
XD
Sorry baby 'wink'
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