If the area is 13, the base is 10, the base is high, and the isosceles vertical is the center line, then the Pythagorean theorem is 5, the height is 12, and the area is 60.

As waist height, the area can be found as 120 13, and the similarity can be found as 60\ 13 (D D is the midpoint of AB). Is it detailed enough? Not enough to send another message!

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