Answer:
Step-by-step explanation:
First you have to realize that you are told that A is the right angle. The middle letter of any angle is the vertex.
BA = 13.7
CA = 8.4
What is missing is the hypotenuse (which does not contain the letter A).
BC^2 = AB^2 + AC^2
BC^2 = 13.7^2 + 8.4^2
BC^2 = 187.69 + 70.56
BC^2 = 258.25
BC = √258.25
BC = 16.07
