Respuesta :

Answer:

1 triangle

Step-by-step explanation:

1 triangle= always equals 180 degrees

45+45+90= 180 degrees

Therefore u can only make 1 triangle

 

Answer:

2: c

3: either A or C

4: D

Step-by-step explanation:

I don't know how to show proof, but for number 3 you could draw a 45-45-90 triangle?