+0  
 
0
29
2
avatar

M is the midpoint of PQ and N is the midpoint of PR, and O is the intersection of QN and RM, as shown. If QN is perpendicular to PR, QN = 18, and PR = 14, then find OR.

 

 Feb 11, 2021
 #1
avatar
0

By the median theorem ON = QN * 1/3 = 6

 

NR = PR / 2 = 7

 

OR = sqrt(ON2 + NR2) = sqrt(42 + 72)

 

OR = √85

 Feb 11, 2021
 #2
avatar
0

Corrections:

 

OR = sqrt(ON2 + NR2) = sqrt(62 + 72)

Guest Feb 11, 2021

80 Online Users

avatar
avatar
avatar
avatar
avatar
avatar
avatar
avatar