Posted by Mindy on Monday, October 4, 2010 at 9:24pm.
The diagonals in a rhombus right-bisect each other, giving you 4 identical right-angled triangles
look at one of them, the hypotenuse would be 15 and the other side is 12.3 , half the diagonal given.
Can you find the missing side using Pythagoras?
Find the area of one of the triangles , then multiply by 4
211.6 units squared
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