Step-by-step explanation:
The sum of two opposite interior angles equals an exterior angle
50+?=115
?=115-50=65°
Answer:
60 degrees
angles on a straight line add up to 180 degrees.
so do 180-115=60
because its an equilateral triangle, you can check whether it adds up to 180
60+60+50=180
please mark me as brainliest!!<3
