Question

Find the length of the diagonal of a cube of side 5m​

Answer 1

Let the length of diagonal be d

Given, Side = 5m

Using Pythagoras theorum,

`√( 3) (side) = d \\ √(3)(5) = d \\ d = 5√(3) m = 8.66 \: m`

Hope this helps :)

Answer 2

diagonal-

= root 3a

= root 3·5

≈ 8.66025