Answer:
D 0.61
Step-by-step explanation:
0.42
0.69
= 0.6089
That’s hard , I don’t even know
You have to find the angle for it try it!!!!!!!!!!
<h3>
Therefore either
or, 
</h3>
Step-by-step explanation:

here a = 3 ,b = 9 and c= -6



Therefore either
or, 
Answer:
Side-Angle-Side
Side-Side-Side
Angle-Angle-Side
Angle-Side-Angle
HL for right triangles
SSS, SAS, ASA, AAS, and HL