Answer:a
Step-by-step explanation:
Answer:
a = 63˚
1. Recognize that any triangle = ∑180˚
2. 180-81-b-a=0
3. 180-117=63˚
2+2=4
if you put up 2 fingers and then add 2 more (2+2) you will get 4!
lol I hope that helped!
