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https://hegartymaths.com/assets/multistep9.png

sorry, didnt give the calculations. AB is parallel to DC.
AD is parallel to BC.
∠ CDB = 66°.
∠ CAB = 26°.
Work out x,

MathsMia  May 6, 2017
edited by MathsMia  May 6, 2017
edited by MathsMia  May 6, 2017
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Because  DC  and AB are parallel lines cut by a transversal, angle CDB  =  angle DBA = 66°

 

And......by the experior angle theorem....    x  = sum ( angle CAB +  angle DBA )

 

So....  x   =  26 + 66  =   92°

 

 

 

cool cool cool

CPhill  May 6, 2017

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