A) \[78{}^\circ \]
B) \[180{}^\circ \]
C) \[90{}^\circ \]
D) \[168{}^\circ \]
Correct Answer: A
Solution :
(a): Complementary angles add up to\[90{}^\circ \]. Hence, \[90{}^\circ -12{}^\circ =78{}^\circ \]You need to login to perform this action.
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