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

MyfriendJaneoncefoundaweasel(鼬鼠)whenhewasveryyoung.Asshewasfondofpets,shethoughtshewouldbringhimup.

Thiskindofcomputeris________handlingallkindsofinformation.

Weshoulddoasmuchaswecan______ourcountrybetterandmorebeautiful.

Onnoaccount______heldresponsiblefortheaccident.

Justasthelionrepresentsstrength,thepigeonis______peaceingeneralcases.

Todayanyonewillacceptmoneyinexchangeforgoodsandservices.Peopleusemoneytobuyfood,furniture,books,bicyclesand

Youfeelhappiestwhenyoucreateahealthybalancebetweengivingandreceiving.Ifyougiveandgivewithoutmakingtimetofi

______allmyrelatives,IlikemyAuntEmilythebest.

Inthefigureabove,x=2.WhatistheareaofcircleO?

Abletosurvivesubzerotemperatures,longperiodsofdarkness,anddayswithoutfood,theArcticwolfisclearlyavery______an

作为一般健身者，一次抗阻训练的时间不超过60分钟。()

电子体温计是采用电子探头测量体温，测得的体温可直接显示数字。()

________是西方现代组织理论中社会系统学派的创始人，也是继霍桑实验发现了非正式组织的存在后，真正对________进行系统研究的学者。

考满

A．有机氯农药B．悬浮性颗粒物C．挥发性有机化合物D．人类致癌物E．人类致畸物氡及其子体是

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抗震设防烈度和设计基本地震加速度的取值有一定对应的关系，当没有特殊规定时，基本地震加速度为0.30g的地区，应按抗震设防烈度为(　　)度要求进行抗震设计。