Question

Hi guys how is life? I hope you are having a nice time, Plz answer this question

A student was asked to make a model shaped like a cylinder with two cones attached at its ends by using a thin aluminium sheet. The diameter of the model is 3cm and its length is 12cm.If each cone has a height of 2 cm, find the volume of air contained in the model.

Answer 1

Answer:

Step-by-step explanation:

Answer 2

hlo ... as usual my life sucks....

btw ,here is ur answer : )

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given,

diameter=3cm

radius=3/2 cm

height of the model=height of the two cones+ height of the cylinder

12=2×2+h

12-4=h

h=8cm

volume=πr²h+2(1/3 πr²h)

=22/7 ×3/2 ×3/2 ×8 +2(1/3 (22/7×3/2×3/2×2))

=22×3×3×8/2×2×7 +2(1/3 (22×3×3×2/2×2×7))

=56.57+2(1/3 × 14.14)

=56.57+2(14.14/3)

=56.57+2(4.71)

=56.57+9.42

=65.99m³

air occupied=65.99m³

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hope it helps ^o^