Posted by Alexis on Monday, December 9, 2013 at 11:14am.
UVW~XYZ, UV= 15, UW=25, and XZ=60. If the perimeter of XYZ is 168, what is the perimeter of UVW?

Help me pls geometry  Reiny, Monday, December 9, 2013 at 11:23am
Since perimeter is a linear function of the sides
and the two triangles are similar,
the ratio of sides = the ratio of perimeters
so P/168 = 25/60
P = 168(25/60) = 70