Question

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

Answer 1

Answer:

14.22

Step-by-step explanation:

length of diagonal of cube =8/3cm

length of diagonal of cube=√3s²

8/3=√3s²

(8/3)²=3s²

64/9=3s²

s²=64/9×3

s=√64/27

s=8/9√3

surface area of cube =6s²

=6(8/3√3)²

=6(64/27)

=14.22