Respuesta :

Answer:

you  wil definetly find 90

Step-by-step explanation:

key word right triangle it has a right angle

Answer:

The first one! 45,45,90

Step-by-step explanation:

The sum of angle is 180, so Only

45+45+90=180

50+50+90=190 it is greater than 180 ist not Ok

60+60+90=210 it is not ok

90+90+90=270 is not ok