Respuesta :

Answer:

12.1

Step-by-step explanation:

c^2 - b^2 = a^2 (how to find one side using the hypotenuse and another side)

14^2 - 7^2 = a^2 (plug in c and b)

196 - 49 = a^2 (simplify exponents)

147 = a^2 (subtract)

a ≈ 12.1 (square root 147 and round to nearest tenth)