how to do this sum with solution
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answer is .......... 120 degrees
hetavsudani:
can you gibe me solution
yess
cb is parallel to De think ab is transversal then in next comment
angle abc is equal to angle dcb
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Angle ABC = Angle BCD (Alt. INT. Angles)
Therefore angle BCD = 60°.
Angle BCD + Angle CDE = 180°
Therefore angle CDE = 120°
Angle CDE = Angle DEF
Therefore angle CDE = 120°
Therefore angle BCD = 60°.
Angle BCD + Angle CDE = 180°
Therefore angle CDE = 120°
Angle CDE = Angle DEF
Therefore angle CDE = 120°
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