Calculate Kite Area: Given Diagonal DB=10 and Side CB=4

To determine if we can calculate the area of the kite, let's consider the steps we would use given complete data:
To calculate the area of a kite, we typically use the formula:

where $d_1$ and $d_2$ represent the lengths of the kite's diagonals.

In this case:

• We are given that diagonal $DB = d_1 = 10$ cm.
• However, we lack the length of the other diagonal, $AC = d_2$.

Without knowing $AC$, we cannot apply the formula to calculate the area. Thus, given the information provided, it is not possible to determine the area of the kite.

Therefore, the solution to the problem is: It is not possible.