Answer: 195 square yards.
Explanation:
A rhombus can be split into four triangles, which is a much easier process to handle.
Area of a triangle is (b * h) /2, where b and h are the base and height of the triangle.
The base of each triangle is 7.5 yards, and the height is 13 yards.
(7.5 * 13) / 2 = 48.75
Multiply this by 4, as there are four triangles.
The area of the rhombus after multiplying is 195 square yards.