Answer:
Check Explanation
Step-by-step explanation:
The longer diagonal of a kite bisects the shorter diagonal.
The diagram of the kite is shown in the attached image to this solution.
The total area of the kite = The sum of the area of the two triangles that make up the kite.
Total area = (½bh + ½bh) = bh
b = 18x
h = (x/2)
Total area of the kite = (x/2)(18x) = 9x²
Just as the question predicts.
Hope this Helps!!!