The context of the following conversation is Casey gave Austin an indication they were correct after looking at the problem to see if it was right.:
Casey says I think Austin was actually right about the angle of the square..
The friend responds I looked over the question about three times and I am pretty sure he is right about it too..
Casey responds It's a pretty good indication that all three sides add up to a positive number..
The friend responds Good, we can turn in the finished project now and get a good grade..
Casey responds I really hope so..