Find each missing angle measure
2 answers:
Answer: angle 1=129 degrees
Step-by-step explanation:
180 - 99 - 30 = 51
all the angles of a triangle should add up to be 180 degrees
51+99+30=180
angle 1 is supplementary to the angle that is 51 degrees so it would be 129 degrees. 180-51=129
Answer:
129⁰
Step-by-step explanation:
angle 1 = 99 + 30
angle 1 = 129⁰
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