In the figure, \[AB=AC,\,\,CH=CB\] and\[HK||BC\]. If the exterior angle \[CAX\] is\[{{140}^{o}}\], find the measure of the angle\[HCK\].

In the figure, \[AB=AC,\,\,CH=CB\] and\[HK||BC\]. If the exterior angl

1.	In the figure, \[AB=AC,\,\,CH=CB\] and\[HK\|\|BC\]. If the exterior angle \[CAX\] is\[{{140}^{o}}\], find the measure of the angle\[HCK\].
A.	\[{{45}^{o}}\]
B.	\[{{55}^{o}}\]
C.	\[{{50}^{o}}\]
D.
Answer» E.

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In the figure, \[AB=AC,\,\,CH=CB\] and\[HK||BC\]. If the exterior angle \[CAX\] is\[{{140}^{o}}\], find the measure of the angle\[HCK\].

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