Question

Find CSA if the length of long diagonal of cube is 36

Answer 1

Answer:

1728 square cm

Step-by-step explanation:

Lenght of diagonal = $\sqrt{3}$ * side

                          36 = $\sqrt{3}$ * side

                        side = 12$\sqrt{3}$ cm

CSA = 4 * $(side)^{2}$

       = 4 * 12$\sqrt{3}$ * 12$\sqrt{3}$

       = 1728 $cm^{2}$

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