Given: m∠APC = 27°, m DC = 27° Find: m AB
2 answers:
Answer:
The unknown angle = 126°
Step-by-step explanation:
From angles in a triangle.
The total sum of angles in a triangle = 180°
Let the unknown angle be x
27 + 27 + x = 180
X = 180-27-27
X= 180-54
X = 126°
Answer: 81°
Step-by-step explanation:
m<p is a secant exterior angle which equals arcAB-arcDC divided by 2.
plug the numbers in and arcAB-27 / 2 =54 Arc AB is 27+54=81 degrees
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