Question

Find the edge length of a cube if the surface area is 565.7 m².

Answer 1

Answer:

9.71 m

Step-by-step explanation:

Surface area of cube is given by 6a^2 where a is the edge length.

Given

Surface area  =565.7 m²

let a be the edge length of required cube

then

6a^2 = 565.7 m²

=> a^2 = 565.7 /6 m² = 94.28

=> a = $\sqrt{94.28}$ = 9.71

Thus, first option  9.71 m is correct choice.