Question

Find the missing angle measurement.

Answer 1

the missing angle is 54

Explanation:

so first we need two triangle angles to get our measurement and we know straight lines add up to 180 so

180-123=57

57+69(other angle)=126

all triangle angles add up to 180 so subtract the two other angles to get your result

180-126=54

54 is your anwser

Answer 2

54°

Explanation:

54°