Question

Question #f5910

Answer 1

This question is incomplete.
Read the explanation for possible solutions

Explanation:

Most likely, polygon `ABCD` has sides of known lengths.
It is also likely that one of the sides of polygon `EFGH` (not `EH`) is also known. For instance, its side `EF`.

If the above is true, we can find the scaling factor as a ratio between lengths of corresponding sides:
`r = (EF)/(AB)`

Since this ratio is constant for any two corresponding lengths,
`r = (EH)/(AD)`

From the last two equations we can derive:
`EH = AD*(EF)/(AB)`