rombus=parallelogram with all 4 sides the same leng
if yu make 1 diagonal, yu make 2 identikal isosaleez triangels...
2 sides=outsides=same leng & side 3 is shared tween 2 triangels
That meen the 2 base angels R the same & hite the same
draw the other diagonal...same rules appli
but the hite av this triangel=hite av its reflekshun kuz 2 trianges R the same
But the hite av this triangel=half av 1 side av the triangels from the other diagonal