Two mutually perpendicular straight lines through the origin form an isosceles triangle with the line 2x+y=5. Then the area of the triangle is:
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Step-by-step explanation:
Given :
Lateral surface area of cube = 2400 sq.m
To Find :
The surface area of cube
Solution :
Lateral surface area of cube is givem by ,
\begin{gathered} \\ \star \: {\boxed{\red{\sf{LSA_{(cube)} = 4 {s}^{2} }}}} \\ \\ \end{gathered}
⋆
LSA
(cube)
=4s
2
Here ,
s is side of the cube
We have ,
LSA = 2400 sq.m
Substituting the value we have in the formula ,
\begin{gathered} \\ : \implies \sf \:2400 \: {m}^{2} = 4 {s}^{2} \\ \\ \end{gathered}
:⟹2400m
2
=4s
2
\begin{gathered} \\ : \implies \sf \: \frac{2400 \: {m}^{2} }{4} = {s}^{2} \\ \\ \end{gathered}
:⟹
4
2400m
2
=s
2
\begin{gathered} \\ : \implies \sf \: 600 \: {m}^{2} = {s}^{2} \\ \\ \end{gathered}
:⟹600m
2
=s
2
\begin{gathered} \\ : \implies \sf \: s = \sqrt{600 \: {m}^{2} } \\ \\ \end{gathered
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