A) \[m\angle DAB=94{}^\circ ,\text{ }m\angle DCB=94{}^\circ ,\text{ }m\angle CBA=86{}^\circ ,\text{ }m\angle CDA=86{}^\circ \]
B) \[m\angle DAB=40{}^\circ ,\text{ }m\angle DCB=40{}^\circ ,\text{ }m\angle CBA=140{}^\circ ,\text{ }m\angle CDA=140{}^\circ \]
C) \[m\angle DAB=86{}^\circ ,\text{ }m\angle DCB=86{}^\circ ,m\angle CBA=94{}^\circ ,\text{ }m\angle CDA=94{}^\circ \]
D) Cannot be determined
E) None of these
Correct Answer: D
Solution :
Explanation Option [d] is correct. The measure of four angles cannot be determined because only one angle is given in the form of linear equation in one variable. At least two such equations are needed to obtain the answer.
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