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Two lines AB and CD intersect at point O such that angleBOC + angle AOD =280, find all four angles

Posted by Ayush Kumar 5 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Bhargav Navin 5 years, 4 months ago

AngleBOC+AOD=280° thus , angle AOD=angleBOC(vertical opposite angle so we can say that 2BOC=280°,BOC=280/2=140°,Angle BOC=AOD=140° Now, AB is a straight line and OC stands on it . given that angleBOC=140° So angle BOC+AOC=180 °(linear pair) 140+AOC=180 AOC=40° And angle AOC=BOD(vertical opposite angle)angle AOC=BOD Thus angle BOC=140°,AOD=140°,AOC=40°,BOD=40°

1Thank You

Raja Rana 5 years, 4 months ago

Notebook ma hoga

1Thank You

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CBSE > Class 09 > Mathematics