Question

Does anyone know? Help please.

Answer 1

Answer:

63

Step-by-step 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.