Question

surface area of cube whose edges are 1•5m​

Answer 1

   The surface area of a cube = 6a²

∴  The surface area of a cube =  6 x (1.5)²

∴  The surface area of a cube =  13.5

Answer 2

Solution:-

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$\large\to{\underbrace{\underline{\sf{Understanding\:the\:concept:-}}}}$

$\implies$ Here, it is given in the question that the edges of a cube are 1.5 m. Now the question has asked us to find out the surface area of the given cube.

⛤ HOW TO DO:-

$\to$ Here, to find the surface area of the given cube we need to apply the TSA formula. Then we have to put the values in the formula and then by solving it we will get the surface area of the given figure.

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ANSWER:-

❍ Surface area of the given cube is 5400 mm².

GIVEN:-

➤ Shape :- Cube

➤ Edges = 1.5 m

TO FIND:-

• Here we have to find out the surface area of the given cube.

SOLUTION:-

• We have to apply a certain formula.
• Put the values in the formula.
• Solve step by step.
• The final digits will be answer.

We know that:-

$\pink \bigstar \: \underline{\boxed{ \rm \purple{Surface \: area = 6 {a}^{2}}}}$

Here,

• a = edge

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So let's solve it!

• Finding the surface area:-

$\leadsto \tt{Surface \: area = 6 \times {1.5}^{2}}$

$\leadsto \tt{Surface \: area = 6 \times 1.5\times 1.5}$

$\leadsto \tt{Surface \: area = 6 \times 2.25^{2}}$

$\leadsto \tt{Surface \: area = 6 \times 2.25^{2} = 13.5^{2} }$

$\pink \ast \: \underline{\boxed{ \rm \purple{Surface \: area = 13.5 \: {m}^{2} }}}$

Thus, we got the answer.

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