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Hey could anyone help? Bit stuck on this question

Hey Could Anyone Help Bit Stuck On This Question class=

Sagot :

Some important concept before solving answer :-

[tex] \\ [/tex]

When ever there is three dimensional figure remember, where one figure is related to other then there's always relation with volume.

So it may get pretty difficult to understand therefore I am dividing into small parts for better understanding.

[tex] \\ [/tex]

[tex] \pmb{ \bf \dag\cal{Part \ One:}}[/tex]

As we know there will be relation of volume, so let's find volume of the cone first.

[tex] \\ [/tex]

Given :-

⭑Height = 10 cm

⭑radius = 3cm

[tex] \\ [/tex]

To find :

⭑volume of cone

[tex] \\ [/tex]

Let represent :-

⭑Height as : h

⭑radius as : r

⭑volume of cone as : v

[tex] \\ \\ [/tex]

Formula to find volume of cone :-

[tex] \\[/tex]

[tex] \bigstar\boxed{ \rm v = \pi {r}^{2} \times \frac{h}{3} }[/tex]

[tex] \\ [/tex]

So let's find v!

[tex] \\ [/tex]

[tex] \dashrightarrow\sf v = \pi {r}^{2} \times \dfrac{h}{3} [/tex]

[tex] \\ \\ [/tex]

[tex] \dashrightarrow\sf v = \dfrac{22}{7} \times {3}^{2} \times \dfrac{10}{3} [/tex]

[tex] \\ \\ [/tex]

[tex] \dashrightarrow\sf v = \dfrac{22}{7} \times {3} \times 3\times \dfrac{10}{3} [/tex]

[tex] \\ \\ [/tex]

[tex] \dashrightarrow\sf v = \dfrac{22}{7} \times {\cancel3} \times 3\times \dfrac{10}{\cancel3} [/tex]

[tex] \\ \\ [/tex]

[tex] \dashrightarrow\sf v = \dfrac{22}{7}\times 3\times \dfrac{10}{1} [/tex]

[tex] \\ [/tex]

[tex] \dashrightarrow\sf v = \dfrac{22}{7}\times 3\times10[/tex]

[tex] \\ \\ [/tex]

[tex] \dashrightarrow\sf v = \dfrac{22\times 3\times10}{7}[/tex]

[tex] \\ \\ [/tex]

[tex] \dashrightarrow\sf v = \dfrac{22\times 30}{7}[/tex]

[tex] \\ \\ [/tex]

[tex] \dashrightarrow\sf v = \dfrac{660}{7}[/tex]

[tex] \\ \\ [/tex]

[tex] \dashrightarrow\bf v =94.3 {cm}^{3} [/tex]

[tex] \\ \\ [/tex]

[tex] \pmb{ \bf \dag\cal{Part \: \: Two:}}[/tex]

So remember that cone filled with water is equal to volume of cone.

volume of water filled in cone = volume of water in cuboid.

So you probably thinking that above sentence is wrong , cause they haven't told volumes of cuboid and cone are equal, but we have to find depth of water filled not depth of cuboid.

[tex] \\ \\ [/tex]

Given :-

⭑Volume of cuboid = 94.3 cm³

⭑Length of cuboid = 5cm

⭑Width of cuboid = 3cm

[tex] \\ [/tex]

To find :-

⭑Depth of water in cuboid

[tex] \\ [/tex]

Let represent:-

⭑Volume of cuboid as : V'

⭑Length of cuboid as : L

⭑Width of cuboid as : W

⭑Depth of water in cuboid as : D

[tex] \\ \\ [/tex]

Formula to find volume of cuboid :-

[tex] \\ \\ [/tex]

[tex] \bigstar\boxed{ \rm V'= W \times L \times D }[/tex]

By using this formula we can find depth of cuboid.

[tex] \\ \\ [/tex]

[tex] : \implies \sf V'= W \times L \times D [/tex]

[tex] \\ \\ [/tex]

[tex] : \implies \sf 94.3= D \times 3 \times 5[/tex]

[tex] \\ \\ [/tex]

[tex] : \implies \sf \dfrac{943}{10\times 3 \times 5} = D [/tex]

[tex] \\ \\ [/tex]

[tex] : \implies \sf \dfrac{943}{10 \times 15} = D [/tex]

[tex] \\ \\ [/tex]

[tex] : \implies \sf \dfrac{943}{150} = D [/tex]

[tex] \\ \\ [/tex]

[tex] : \implies \sf D = \dfrac{943}{150} [/tex]

[tex] \\ \\ [/tex]

[tex] : \implies \bf D = 6.3cm[/tex]

[tex] \\ \\ [/tex]

Required Answer:-

Depth = 6.3 cm

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Step-by-step explanation:

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