ill mark you brainliest

We'll set up an equation for this by adding the two known angles that equals 180.
It will be:
m° + 66° + 52° = 180
66 + 52 = 118
118 = 180 and we'll subtract 118 from 180
180 - 118 = 62
So, your answer is m= 62°
Answer:
62 degrees
Step-by-step explanation:
step 1) Subtract the existing angles (which are 66 and 52) from 180
step 2) Plug the number you got as well as the two existing angles into the formula a + b + c = 180 to check your answer. If each of the three angles add up to 180 you have the correct answer.