A) \[150{}^\circ \]
B) \[115{}^\circ \]
C) \[151{}^\circ \]
D) \[105{}^\circ \]
Correct Answer: C
Solution :
In \[\Delta DEC,\angle D+\angle C+\angle E=180{}^\circ \] \[\angle E=180{}^\circ -61{}^\circ -90{}^\circ =29{}^\circ \] \[\angle ABC=\angle BED=29{}^\circ \] \[\angle ABC+\angle BCF=180{}^\circ \] \[\angle BCF=180{}^\circ -29{}^\circ =151{}^\circ \]You need to login to perform this action.
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