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.

y-y1=4(x-x1)

step-by-step explanation:

this is point-slope form since you only have 4 as the slope it goes in place of m

hope this : )

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.