gebdbb gebdbb
  • 03-08-2020
  • Mathematics
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Please answer this question now

Please answer this question now class=

Respuesta :

jimrgrant1 jimrgrant1
  • 03-08-2020

Answer:

AB = 72°

Step-by-step explanation:

The inscribed angle ADC is half the measure of its intercepted arc, thus

56° = [tex]\frac{1}{2}[/tex] ( m ABC ) ← multiply both sides by 2

112° = ABC

ABC = AB + BC = AB + 40, so

AB + 40 = 112 ( subtract 40 from both sides )

AB = 72°

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