Finding C [ all the 2's in this thingy are an exponent.]
eg. 1
Here is the diagram.
Its a bad diagram. But i hope you can at least see it. lol okay well here is the math work::
You know that: a2+b2=c2
42+32=c2
[4x4] + [3x3] = c2
16 + 9 = c2
c2 = 25
the square root of 25 is 5 so the answer is 5
back to the diagram
