Answer:
Figure 1 : Hypotenuse leg (HL)
Figure 2: Angle side angle (ASA)
Figure 3: Side angle side (SAS)
Step-by-step explanation:
y = 1/2x - 5
y = 1/2x+b
-1 = 1/2(8) +b
-1 = 4+b
-5 = b
x=13.6
By Pythagoras theorem, 5.5^2+x^2=14.7^2. x^2=14.7^2-5.5^2. x=13.6