Answer:
The answer is √133
Step-by-step explanation:
Using pythagorean theorem
Opposite² + adjacent² = hypothenus²
6² + x² = 13²
36 + x² = 169
Collect like terms
x² = 169 - 36
x² = 133
x = √133
Option 2
13² = 6² + x²
169 = 36 + x²
x = sqrt(133)
