algebra II
posted by betty .
I have been working on this problem for a while and for some reason I don't come up with the answer.
a^2+b^2=c^2
I came up with 2square root 5 please tell me if this is correct.
In a right triangle, Find the length of the side not given b=1, c=square root 10
thank you.

First, you know the formula is a^2 + b^2 = c^2. Next, substitute the values: a^2 + 1^2 = root 10 ^2
Do the operations. a^2 + 1 = 10
Now= a^2 = 101
a^2 = 9
a = 3