Answer:
12.1
Step-by-step explanation:
A^2+b^2=c^2
a^2+49=196
196-49=a^2
sqrt147=a
12.1=a
x = 12.1 in.
a² + b² = c²
7² + x² = 14²
49 + x² = 196
x² = 147
x = sqrt(147)
