Point B is between Q and R on . BR = 16.9 and QR = 51.5. Sketch to determine the length of QB.

Question

a.
QB = 34.6
c.
QB = 16.8
b.
QB = 20.7
d.
QB = 35

Answer 1

This is the Segment Addition Postulate.  Draw a line segment QR.  Draw point B on the line between Q and R:

 

QB + BR = QR

QB + 16.9 = 51.5

 

Solve for QB.