Answer:
BC = 1 6.45
Step-by-step explanation:
The way it is written, BC is the hypotenuse
BC^2 = AB^2 + CA^2 Substitute the numbers for AB and CA
BC^2 = 13.9^2 + 8.8^2 Perform the squares
BC^2 = 193.21 + 77.44 Add the right side
BC^2 = 270.65 Take the square root of both sides
BC = 16.45
