Problem Solving (PS) | Re: In the figure above, if BC = CA, then y =

In the above figure,

Given that :
1. BC=CA so, angle CBA=CAB=y
2. Angle DCE=Angle BCA = 30 (since they both are vertical angles and will be equal)

There fore In Triangle ABC,
Angles (CBA + CAB + ACB) =180
y+y+30=180
So, y = 75

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