Math, asked by lechumol08, 1 year ago

2 lines AB and CD intersect at O. If angle AOC + angle BOC= 70 and angle BOD = 40, find angle BOE and reflex angle COE.

Answers

Answered by Mathexpert

$\angle BOD = 40$ degrees

Therefore, $\angle AOC = 40$ [vertically opp angles]

Given that, $\angle AOC +\angle BOC= 70$

Therefore, $\angle BOC = 30$

I am not sure, from where did "E" comes?

Attachments:

lechumol08: e bisects angle COB

Anonymous: Your question is like this:- (1).AB and CD intersect at O. (2).Angle BOC is bisected by OE. (3). Angle AOC + Angle EOC = 70. (4). Angle BOD = 40. (5). Find angle BOE . (6). Find reflex angle COE. Answer:- (5). As OE bisects angle BOC, hence angle BOE = angle COE = 70. (6). (i) Angle AOD = vertically opposite angle BOC = angle BOE+ angle COE = 70+70 = 140. (ii) Angle COA = vertically opposite angle BOD = 40. Therefore reflex angle COE = 360 - angle COE = 360 - 70 = 290.

Answered by Anonymous

What is point E ?
Also check the statement of the question again. There seems to be error with angles AOC and BOC being equal to 70 as AB is a straight line.

lechumol08: E bisects angle COB

Previous Question

Next Question