If a cubical water tank is 90 cm tall. Find the volume of tank.
Answers
Step-by-step explanation:
Given:
For a cube,
Side =90 cm
To find:
Surface area and volume of the cube
Explanation:
\sf side,a=90cmside,a=90cm
We know that
\boxed{\sf volume \: of \: cube=a^3 \: cubic\: units }volumeofcube=a3cubicunits
\begin{gathered} \longrightarrow \: \sf \: v = {a}^{3} \\ \\ \longrightarrow \: \sf v = {90}^{3} \\ \\ \longrightarrow \: \boxed{\sf v = 729000 \: {cm}^{3} }\end{gathered}⟶v=a3⟶v=903⟶v=729000cm3
\boxed{\sf T.S.A=6a^2}T.S.A=6a2
putting in the values
\begin{gathered}\longrightarrow \: \sf T.S.A=6(90)^2 \\ \\ \longrightarrow \: \sf T.S.A=6(8100) \\ \\ \longrightarrow \: \boxed{ \sf T.S.A=48600 {cm}^2}\end{gathered}⟶T.S.A=6(90)2⟶T.S.A=6(8100)⟶T.S.A=48600cm2
Extra information:
↔L.S.A of cube=4a² sq.units
↔L.S.A of cuboid =2h(l+b) sq.units
↔T.S.A of cuboid =2(lb+bh+lh) sq.units
↔Volume of cuboid=lbh cubic units
Answer:
Volume of tank = 729000cm³
Given
- side of cubical tank = 90 cm
Step-by-step explanation:
We know that the volume of cube = s³
Volume of cubical tank = (90cm)³ = 729000cm³