Question

In the given figure, show that AB II EF.
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Answer 1

Step-by-step explanation:

Extend EF to BC and mark the intersection as O

To prove: angle ABC = angle BOE

angle OEC=180-140

=40 degrees

angle EOC=180 - (40 + 35)

=105 degrees

Angle BOE = 180 -105

=75 degrees

ABC=BOE [As interior opposite sides are equal]

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