What is the length of the missing leg?

Answer:
a = 6
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Equality Properties
Trigonometry
[Right Triangles Only] Pythagorean Theorem: a² + b² = c²
Step-by-step explanation:
Step 1: Define
Identify variables
a = a
b = 8
c = 10
Step 2: Solve for a