Rectangle ABCD is SIMILAR to rectangle EFGH this means that they are proportionately the same as each other. Therefore any changes we know about one side apply to the whole shape. Since we know side EF is 5 times side AB we also know side EH is 5 times side AD. If 5 times AD is 35, AD must be 7. Multiply that by five, and you have the value of EH, which is 35. multiply that by EF (25), and you have your answer. Hope this helps!
