Question

3. If the length of a diagonal of a cube is 8/3 cm, then its surface area is :
(a) 512 cm2
(b) 384 cm2 (c) 192 cm2 (d) 768 cm2​

Answer 1

Answer:

128 cm²

Step-by-step explanation:

Given,

Diagonal of cube=8/3 cm

√3×a=8/3

a=8/3√3

Now, we found side as 8/3√3,

Total Surface Area of cube=6 s²

T.S.A=6 (8/3√3)(8/3√3)

T.S.A=128 cm²

Answer 2

Answer:

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