What is the length of the diagonal for the given rectangular prism?

L=12
W=4
H=9

16
15
13
10

4 answers

What is
√(12^2 + 4^2 + 9^2) ??

I get √441 , which is not any of your choices.
I get √241 = 15.52
I had that too, hit the 4 instead of the 2, sorry.
16 cm.