Question

Does anyone know? Help please.

Answer 1

63

Explanation:

1. We need to plug in b and c in order to solve for a. C is the long slanted side.
2. 
   `12^(2)` -
   `9^(2)` =
   `a^(2)`
3. 12 • 12 = 144, and 9 • 9 = 81.
4. 144 - 81 = 63.

If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.