Can some show the steps and the answer please I really need help tell me how you get it and the answer

Answer:
10
Step-by-step explanation:
a^2+b^2=c^2
8^2+6^2=c^2
64+36=c^2
100=C^2
the square root of 100=c (the length of that side of the ladder).
the square root of 100 is 10