Question

POLYGONS ABCD & EFGH ARE SIMILAR. WHAT IS THE PERIMETER OF EFGH WHEN AD = 12, BC = 8, FE = 15, FG = 10, and GH = 5?

Answer 1

since two polygons are similar,  the scale factor is FG/BC = 10/8 = 5/4

Which means that the same scale factors applies to other sides as well. Therefore, EH/AD = 5/4
EH =  5/4 * AD =  5/4 *12 = x

Hope this helps