Answer:
1 & 2 = Right Triangles
3 & 4 = Not Right Triangles
Step-by-step explanation:
Solved Using Pythagorean Theorem:
1) [tex]9^{2} + 12^{2}[/tex] = 225
[tex]15^{2}[/tex] = 225
2) [tex]15^{2} + 36^{2}[/tex] = 1521
[tex]39^{2}[/tex] = 1521
3) [tex]10^{2} + 26^{2}[/tex] = 776
[tex]28^{2}[/tex] = 784
4) [tex]10^{2} + 12^{2}[/tex] = 244
[tex]16^{2}[/tex] = 256
