In the figure above, if, what is the value of r ? r =______

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问题

In the figure above, if

, what is the value of r ?
r =______

选项

答案112.5

解析 From the figure, note that r° + s° must equal 180°. Therefore

. Since you are also given in the question that

, you can conclude that

. Thus r =

= 112.5, and the correct answer is 112.5.
This explanation uses the following strategy.
Strategy 4: Translate from a Figure to an Arithmetic or Algebraic Representation

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In the figure above, if, what is the value of r ? r =______

GRE QUANTITATIVE

GRE

Hismostimportant______wastheintroductionoftheseminarymethodofinstructionforadvancedstudents.

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Whatdowemeanbyasatisfactorystandardofliving?Obviously,itmustincludethebasicnecessitiesoflifesuchasfood,clo

Jackboughtashirtbecauseitwasgoodinqualityand_________inprice.

Thefigureaboverepresentsawindow,withtheshadedregionsrepresentingopeningsforglassandthepaleregionsrepresenting

Acertainbrandofhousepaintmustbepurchasedeitherinquartsat$12eachoringallonsat$18each．Apainterneedsa3-gall

ToreadofAbigailAdams’lengthyseparationfromherfamily,herdifficulttravels,andherconstantbattleswithillnessisto

Whatisthemaximumnumberofnonover-lappingregionsintowhich3linescandividetheinteriorofacircle?

AB=BC,AC=BD;WhatarethecoordinatesofpointBinthexy-planeabove?

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机动车驾驶证被依法扣押、扣留或者暂扣期间，机动车驾驶人不得申请补发。

张孝祥《念奴娇．过洞庭》(洞庭青草）所叙写景色的节令是()

《国殇》选自《九歌》，是屈原祭奠为国捐躯的楚军将士亡灵的一首祭歌。()

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