angle ACD is an exterior angle of triangle ABC if angle AcD=110°,BAC=70° find ABC
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by the theorem on remote exterior angle ..
..the measure of the exterior angle is equal to the sum of the remote interior angles..
thus ..
.. angle ACD=angle BAC +angle ABC
..110=70+angle ABC..
..angle ABC=110-70
angle ABC=40°
..the measure of the exterior angle is equal to the sum of the remote interior angles..
thus ..
.. angle ACD=angle BAC +angle ABC
..110=70+angle ABC..
..angle ABC=110-70
angle ABC=40°
keshavatole233:
thank you i got my answer
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