Never mind. Read it wrong. Damn Castle Learning.
Okay. I'd doing this assignment and I came across a problem I absolutly know i got right but the computer says otherwise (possibly a programming error). Here it is:
In the diagram of ΔABC, m∠ACB = 90 and is an altitude. If AD = 2 and DB = 6, find AC.
It said it was 4.) 4, but I disagree.