Math, asked by newyork, 11 months ago

Find angle ADC in the fig

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Answered by adisthacker

1

Answer:

∠ABC + ∠BAD + ∠BCD + ∠ADC = 360 degree

50 + 30 + 55 + ∠ADC = 360 degree

135 + ∠ADC =360 degree

∠ADC = 360 - 135

∠ADC = 225 degree

newyork: But the correct answer mentioned at the back is 135°

newyork: Pls rply

adisthacker: yes yes i found the interior angle ADC exterior angle ADC will be

adisthacker: 225 - 360 ( Interior angle ADC and exterior angle ADC make 360 degree ) 225-360 =exterior angle ADC =>135 degree is the answer

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