[求助]Data sufficiency question: OG P61-11

lilly58

thank you for the clarification, Lotery.     It really helps!!

lotery

你的題目有錯误是OG DS#31             应该是
in triangle PQR, if PQ=x,QR=x+2,and PR=y        


照你打的題目答案应该E
    

juniya

e

billboi

x+2+x+3>QR


2x+5>qr


y=2x+6>2x+5>QR


so Y is the longest...got it?

lilly58

Data sufficiency question OG P61-11

In triangle PQR, if PQ=x+2, and PR=y, whihc of the three angles of PRQ has the greaest degree measure?

(1)y=x+3

(2) x=2



the answer is statement (1) alone is sufficient, but statement (2) alone is not sufficient to asnswer the question.



I have doubt on this: there is no information given for QR, then how can it be determined which side is the longest?