Mathematics

Given AB, CD and EF straight   lines intersecting at the point O.  If $$a = c < 45$$, then:


ANSWER

EF bisects $$\angle BOD$$


SOLUTION
Given: $$a=c$$
But, $$a=d$$ and $$c=b$$       ...(Vertically opposite angles)
$$\Rightarrow d=b$$
Therefore, $$EF$$ is a bisector of $$\angle BOD$$ and $$\angle AOC$$.
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Single Correct Medium Published on 09th 09, 2020
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