Question

l=8 w=4 h=2

Find the diagonal(d) of the base

Answer 1

I believe this is a cuboid
so base = l*b

so base is a rectangle with length = 8 and width = 4
so it looks like

so Using Pythagoras Theorem
Diagonal^2 = 8^2 + 4^2
Diagonal ^2 = 64 + 16
Diagonal^2 = 80
so
Diagonal = root(80) = 4root(5)