Answer: K= 8/3 or 2 2/3
Step-by-step explanation:
I think it is C. 60.
You can eliminate A because it is not a right angle, and D because the angle is bigger than the given angle. So it is between 50 and 60, and I hope this is right and the picture makes sense
Answer:

Step-by-step explanation:





Answer:
Lets say its a right angle : we know that it is 90 degrees
Since triangles are congruent to each triangle, each triangle has half as many degrees, namely 180. So this is true for any right triangle.
Answer:(9,-5)
Step-by-step explanation: trust me