Question

Help me with this math questions please

Answer 1

Answer:

140

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Arc AC + Arc BC + Arc AB = 360° ...( All three arcs constitutes a complete circle)

200°+80°+ Arc AB = 360°

280° + Arc AB = 360°

Arc AB = 80°

angle ACB = 1/2 × Arc AB ...( Theorem )

= 1/2 × 80°

= 40°