Answer: 82 Degrees
Step-by-step explanation:
- Find the missing angle in the leftmost triangle
This will give us an exterior angle to work with when adding the 66
80+30+x=180
110+x=180
x=70
The missing angle in the leftmost triangle is 70 degrees
- Add together the two outside angles of the Rightmost triangle to create an exterior angle
The angle we are adding is 66
70+66=136
- Find the interior angle by making a supplementary pair
with always Exterior and interior angles on trangles with always equal 80
66 is the exterior angle of the base angle on the left
180-136=x
44=x
- Find the missing angle so the triangle equals 180
44+54+x=180
98+x=180
x=82
