The dimensions of a solid iron cuboid are 4.4 m × 2.6 m × 1.0 m. It is melted and recast into a hollow cylindrical pipe of 30 m inner

Question

The dimensions of a solid iron cuboid are 4.4 m × 2.6 m × 1.0 m. It is melted
and recast into a hollow cylindrical pipe of 30 m inner radius and
thickness 5cm. Find the height of the pipe.

in progress 0
Kinsley 3 weeks 2021-08-20T17:22:46+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-08-20T17:24:15+00:00

    Step-by-step explanation:

    ANSWER

    Iron : l=44m

    b=2.6m

    h

    1

    =1.0m

    Hollow cylinder : r

    1

    =30cm=0.3m

    r

    2

    =35cm=0.35m

    h

    2

    =?

    Volume of cuboid = Volume of hollow cylinder

    l×b×h

    1

    =πh

    2

    (r

    2

    2

    −r

    1

    2

    )

    4.4×2.6×1=

    7

    22

    ×h

    2

    ×[(

    100

    35

    )

    2

    −(

    100

    30

    )

    2

    ]

    10

    44

    ×

    10

    26

    =

    7

    22

    ×h

    2

    ×

    (100)

    2

    (35−30)(35+30)

    =

    7

    22

    ×h

    2

    ×

    (100)2

    5×65

    ∴h

    2

    =

    10

    44

    ×

    10

    26

    ×

    22

    7

    ×

    5×65

    100×100

    ∴h

    2

    =112m

    hppe u will give me brainlest answer

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