which angle is an exterior angle of the triangle?

1
2
3
4

4

Step-by-step explanation: 1. Look at all the angles 2. The first three angles are inside the triangle 3. The last angle (4) is outside (external) the triangle.

4

Step-by-step explanation:

just took the test and the question is easy the four is on the outside of the triangle so that mean its exterior if it wasnt the number four would have been inside the following shape.

b). 4320 have a nice day