a cone with radius 14 and hieght 3.5cm is melted and reformed into a cylinder with radius 7cm find it's hieght
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Answer:
4.66 cm
Step-by-step explanation:
radius of cone = 14 cm
height of cone = 3.5 cm
volume of cone = 1/3x22/7x14x14x3.5 (1 by three multiplied by pie radius sq. and height)
= 718.66 cm cu.
now
radius of cylinder = 7 cm
height = y cm
now volume of cone = volume of cylinder
therefore
718.66 = 22/7 x 7 x 7 x y
718.66=154y
718.66 / 154 = y
4.66 = y
4.66 cm is height
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