MathematicsEuclidean geometryJAMB
In the diagram, the two horizontal lines are parallel. Find the angle marked x.
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Answer: C. 115°
The 65° angle and x are co-interior (allied) angles between parallel lines, so they add up to 180°: x = 115°.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.