Answer:
The answer is A. 35 degrees
Step-by-step explanation:
The triangle has to measure up to 180 degrees
add the 2 known angles together
105 + 40 = 145
Subtract the total from 180
180-145= 35
the missing angle is 35
Check Answer:
to check your answer add up all the angle measurements
your total should add up to 180
35 + 40 + 105 = 180
