Answer:
110°
Step-by-step explanation:
Using the exterior angles theorem (Exterior angles of a triangle is equivalent to the two interior angles that are NOT adjacent (touching) the exterior angle), we can set up an equation:
6x+20=x+40+4x-5
Combine like terms
6x+20=5x+35
Subtract 5x from both sides:
x+20=35
Subtract 20 from both sides
x=15
Substitute 15 for x to solve for ∠QPT:
6(15)+20=90+20=110°
