Lines with special relationships to the sides and angles of a triangle determine proportional segments. When you know the length of some segments, you can use a proportion to find an unknown length.
You are making the kite shown on the right (see attachment) from five pairs of congruent panels. In parts (a) - (d) below, use the given information to find the side lengths of the kite's panels. ABCD isd a kite:
EB = 15 in., BC = 25 in.
The extended ratio XY:YZ:ZC is 3:1:4