find the measure of arc ADC, if angle OAB = 30° & angle OCB = 50°
shivam75:
please provide diagram
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Answers
Answered by
100
In triangle AOB,
Angle OAB = angle OBA ( angles between equal sides are equal)
=> OBA = 30°
So,
Angles OAB + OBA + BOA = 180°
=> 60° + BOA=180°
=>Angle BOA=120°
Similarly,
Angle BOC = 80°
Hence,
Measure of arc ADC = Angle AOC
= 360° - (120 + 80)°
= 160°
Angle OAB = angle OBA ( angles between equal sides are equal)
=> OBA = 30°
So,
Angles OAB + OBA + BOA = 180°
=> 60° + BOA=180°
=>Angle BOA=120°
Similarly,
Angle BOC = 80°
Hence,
Measure of arc ADC = Angle AOC
= 360° - (120 + 80)°
= 160°
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Answered by
16
Answer:triangle AOB,
Angle OAB = angle OBA ( angles between equal sides are equal)
=> OBA = 30°
So,
Angles OAB + OBA + BOA = 180°
=> 60° + BOA=180°
=>Angle BOA=120°
Similarly,
Angle BOC = 80°
Hence,
Measure of arc ADC = Angle AOC
= 360° - (120 + 80)°
= 16
Step-by-step explanation:
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