Question

the total surface area of a cube is 700 CM square what will be its length if its breadth and height are 10 cm and 8 cm respectively​

Answer 1

Your question is wrong, if it is a cube then how the breath and volume are different?

Let's suppose that it is a cuboid, then,

(10l + 80 + 8l) cm^2 = 700 cm^2

=> l = (620/18)cm

=> 34.44444 = Length