Respuesta :

sin270

Answer:

What to prove, solve for?

Answer:

the triangles aren't congruent

Step-by-step explanation:

the three angles in a triangle should make 180

so let's see..

the first triangle

180 = 45 + 31 + x (x is the third angle)

x = 180 - 76

x = 104

we now look the second triangle and it has an angle 124 which isn't equal to 104 so two triangles are not congruent