SOLUTION: these two polygons are similar x= <pre> | \ / | | \ / |

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Question 1109291: these two polygons are similar x= 
                           | \                      / |
                           |  \                    /  |   
                         y |   \ 100              /   |x
                           |     \               /    |
                           |      \             /     |
                           |        \          /      |
                           |          \       /       |
                         20|\40      /| \    /        |
                           | \      / |30\  /         |
                           |   \  /   |   \/          |
                           |____\/____|_______________|
                               z           69

the 20,40,30 and the z are the smaller polygon
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
30/40 = x/100
x = 75