Answer:
8.0, 13.7, 5.1 = yes
10, 2, 5 = yes
9, 6, 15 = no
26, 7, 7 = yes
i might be wrong, im not sure
Step-by-step explanation:
hmmmm m really sorry
no idea
Pythagorean theorem
Step-by-step explanation
a^2+b^2=c^2
the angle is greater than 180 degrees so it makes it an obtuse triangle