Answer:
I am pretty sure its D
Step-by-step explanation: If you add 62 + 75 it would equal 137. Than you would have to subtract that from 180 which would give you 43.
43°
Step-by-step explanation:
let the unknown angle be X°
62°+x°+75°=180°{being sum of straight angle}
137°+x°=180°
x°=180-137
x°=43°
