Question

Help me out

Answer 1

@Catch.me

Answer 2

You have to use Pythagorean Theorem.

Answer 3

First find the diagonal of the base of the rectangular prism an that will be a side of the diagonal.

Answer 4

you already know one side is 3

Answer 5

then use a^2+b^2=c^2 to find the actual diagonal.

Answer 6

then

get ac