Question

[Trần Lan Phương]

Let ABCD be a trapezoid with bases AB, CD and O be the intersection of AC and BD. If the areas of triangle OAB, triangle OCD are 16cm², 40cm²respectively and M is the midpoint of BD, then the area of the triangle AMD is  .........cm².

Bạn nào giúp mk vs!!!

Answer 1

[tth_new]

I don't know!