GRE考试

Angles,ParallelLines,andPerpendicularLin

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【分析解答题】

Angles, Parallel Lines, and Perpendicular Lines
These questions will test your knowledge of operations involving angles, parallel lines, and perpendicular lines.
Answer the following questions.
In the figure below, line x is parallel to line y. What is the measure of angle α


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试题答案: 答案解析:The answer is 137°. The transversal crosses two parallel lines, so the angles made at the intersections will be identical. 43° corresponds to the supplementary angle of a on line y. Since 43° and a are supplementary angles, they must add up to 180°. Therefore, the answer is 137°. document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>

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