In the figure below, line x is parallel to line y. What is the measure of angle a?

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问题 In the figure below, line x is parallel to line y. What is the measure of angle a?

选项

答案137°

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°.

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In the figure below, line x is parallel to line y. What is the measure of angle a?

GRE QUANTITATIVE

GRE

Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingatermcalledcarbon"footprint."Thatfootprintrefle

TheCalifornialawmakersvotedThursdaytoraisethelegalagetobuytobaccoproductsfrom18to21.Themeasureispartofal

Somepeoplethinkoflifeasagame.Therearesimilaritiesbetweenlifeandgames;bothcanbeplayed,bothhaverules,andbot

Scientistsmeasuredtheimpactthatpeoplehaveontheenviromentusingatermcalledcarbon"footprint".Thatfootprintreflect

Howdoyouknowifyourhomeisaneasyaimforthefts?Aroundtheholidays,manyfamiliesdon’tconsidertakingpropermeasures

Inarightisoscelestriangle,thelengthsofthetwononhypotenusesidesaredesignateda.Whatistheareaofthetrianglein

Inthefigureabove,whatistheperimeterof△PQF?(1)ThelengthofsegmentPTis2.(2)ThelengthofsegmentRSis.

Whatisthelengthofthehypotenuseof△ABC?(1)Thelengthsofthethreesidesof△ABCareconsecutiveevenintegers.(2)The

Ifthedegreemeasuresoftheanglesofatriangleareintheratio2:3:4,whatisthedegreemeasureofthesmallestangle?

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时标网络计划中，波形线表示()。

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A、3B、4C、5D、6D图形数阵，优先考虑对角线方向的数字关系。观察发现：第一个数阵中，2×5=4+6；第二个数阵中，1×7=3+4；第三个数阵中，3×5=8+7；因此，第四个数阵中应该满足：2×4=2+所求项，可知所求项为6。故正确答案为D。

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Asurveywascarriedoutonthepercentagerateofwomenwhowereintheworkforceinthepast30years,theresultsofitwere