Answer:
it says round to the nearest 10th so it wouldn't be 81, it would be 81.8%
Y=12
The angles are 45°, 114°,105°,96° & 84°
Answer:17/2pi
Explained:
Just writing longer so I don’t have to go into details. If this is on khan academy you don’t have to show your work!
No the don't add up to one eighty I'm pretty sure if not tell me