Answer:
11
Step-by-step explanation:
First, find the diagonal along the base of the prism. Let B be the diagonal along the base.
8^(2)+6^(2)=b^(2)
64+36=b^(2)
100=b^(2)
10=b
Then let d be the diagonal from point A to point B
b^(2)+5^(2)=d^(2)
10^(2)+5^(2)=d^(2)
100+25=d^(2)
125=d^(2)
\sqrt(125)=d
11=d
Next time make sure to include a picture! This way we know were answering the correct problem :)
