ABCD is a rectangle where AB = CD = 20, and AD= BC = 16
E is a point on AB such that AE= 5, and:
F is a point on BC such that CF =4.
Point E is joined onto F forming the crease GH with G on AB and H on CD.
Find the length of GH.

Geometer's Sketchpad gives the length as 20.49000.

Posted by Charlie on 2016-04-15 09:52:15