CBSE BOARD XII, asked by sreekarreddy91, 7 months ago

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Answered by anjudwivedi888
1

Explanation:

AF is parallel to CD

Therefore, AF is the transversal

Now AF is parallel to ED

therefore, EF is the transversal

Therefore, Angle AFE = 42 degree

We know that A straight line is always 180 degree

therefore, Angle AFC + AFE + EFD = 180 degree.

68o + 42o + EFD = 180 degree.

110o + Angle EFD = 180 degree

therefore Angle Efd = 70 degree

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Answered by yuvi866845
0

BEF=EFC (alternate interior angle)

BED+DEF=EFA+AFC

BED+42°= EFA+68°

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