A) \[{{50}^{{}^\circ }}\]
B) \[{{80}^{{}^\circ }}\]
C) \[{{100}^{{}^\circ }}\]
D) \[{{120}^{{}^\circ }}\]
Correct Answer: A
Solution :
(a): \[\angle BDC={{130}^{{}^\circ }}\] \[\therefore \]\[\angle CDP={{180}^{{}^\circ }}-{{130}^{{}^\circ }}={{50}^{{}^\circ }}\] \[CD\parallel AB\] \[\therefore \] \[\angle ABP={{50}^{{}^\circ }}=\angle CDP\]You need to login to perform this action.
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