Answer:
Step-by-step explanation:
a=1
r=-6/1=-6

Answer:
65 degrees
Step-by-step explanation:
All angles of a triangle have to add up to 180 degrees. After establishing that, we can see that there are two angles given. 25 degrees and a 90-degree symbol. So if two angles add up to 115 degrees, we can do 180-115=65 to find the angle of C.
Answer: 64 and 81
Step-by-step explanation: I used my brain. :)