Answer: 65
Step-by-step explanation:
all angles of a triangle will add up to be 180 degrees there for add 80 + 35 to get 115 degrees and then subtract 115 from 180(180-115) to get the third angle of 65 degrees
Answer:
65
80+35+?=180
115+?=180
115-115+?=180-115
?=65
