Angles in a triangle

The three angles add up to 180°.

1. Two angles of a triangle are 77° and 79°. What is the third angle?
2. Two angles of a triangle are 83° and 77°. What is the third angle?
3. Two angles of a triangle are 34° and 99°. What is the third angle?
4. Two angles of a triangle are 20° and 25°. What is the third angle?
5. Two angles of a triangle are 66° and 20°. What is the third angle?
6. Two angles of a triangle are 66° and 66°. What is the third angle?
7. Two angles of a triangle are 88° and 21°. What is the third angle?
8. Two angles of a triangle are 91° and 59°. What is the third angle?
9. Two angles of a triangle are 69° and 44°. What is the third angle?
10. Two angles of a triangle are 104° and 19°. What is the third angle?
11. Two angles of a triangle are 56° and 27°. What is the third angle?
12. Two angles of a triangle are 55° and 30°. What is the third angle?
13. Two angles of a triangle are 66° and 63°. What is the third angle?
14. Two angles of a triangle are 60° and 100°. What is the third angle?
15. Two angles of a triangle are 85° and 23°. What is the third angle?
16. Two angles of a triangle are 45° and 56°. What is the third angle?
17. Two angles of a triangle are 74° and 15°. What is the third angle?
18. Two angles of a triangle are 32° and 32°. What is the third angle?
19. Two angles of a triangle are 58° and 43°. What is the third angle?
20. Two angles of a triangle are 93° and 39°. What is the third angle?