Is the triangle acute, right or obtuse?

Compare the sum of the squares of the two shorter sides with the square of the longest side. Equal: right. Greater: acute. Less: obtuse.

1. A triangle has sides of 6, 5 and 4. Is it acute, right or obtuse? Write acute, right or obtuse.
2. A triangle has sides of 18, 6 and 21. Is it acute, right or obtuse? Write acute, right or obtuse.
3. A triangle has sides of 19, 19 and 8. Is it acute, right or obtuse? Write acute, right or obtuse.
4. A triangle has sides of 14, 19 and 23. Is it acute, right or obtuse? Write acute, right or obtuse.
5. A triangle has sides of 12, 13 and 20. Is it acute, right or obtuse? Write acute, right or obtuse.
6. A triangle has sides of 18, 25 and 21. Is it acute, right or obtuse? Write acute, right or obtuse.
7. A triangle has sides of 18, 14 and 26. Is it acute, right or obtuse? Write acute, right or obtuse.
8. A triangle has sides of 19, 13 and 31. Is it acute, right or obtuse? Write acute, right or obtuse.
9. A triangle has sides of 8, 17 and 23. Is it acute, right or obtuse? Write acute, right or obtuse.
10. A triangle has sides of 28, 5 and 30. Is it acute, right or obtuse? Write acute, right or obtuse.
11. A triangle has sides of 11, 24 and 18. Is it acute, right or obtuse? Write acute, right or obtuse.
12. A triangle has sides of 8, 20 and 19. Is it acute, right or obtuse? Write acute, right or obtuse.
13. A triangle has sides of 10, 33 and 40. Is it acute, right or obtuse? Write acute, right or obtuse.
14. A triangle has sides of 35, 32 and 29. Is it acute, right or obtuse? Write acute, right or obtuse.
15. A triangle has sides of 36, 10 and 34. Is it acute, right or obtuse? Write acute, right or obtuse.
16. A triangle has sides of 26, 25 and 40. Is it acute, right or obtuse? Write acute, right or obtuse.
17. A triangle has sides of 48, 10 and 48. Is it acute, right or obtuse? Write acute, right or obtuse.
18. A triangle has sides of 30, 50 and 53. Is it acute, right or obtuse? Write acute, right or obtuse.
19. A triangle has sides of 31, 8 and 24. Is it acute, right or obtuse? Write acute, right or obtuse.
20. A triangle has sides of 45, 11 and 36. Is it acute, right or obtuse? Write acute, right or obtuse.