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