Final answer:
The area of triangle DCE can be calculated by finding the area under the curve using the formula for the area of a triangle.
Step-by-step explanation:
The area of triangle DCE can be calculated by finding the area under the curve. From the given information, it is mentioned that the area under the curve is the area of the right triangle. Therefore, the area of triangle DCE can be calculated using the formula for the area of a triangle, which is: Area = 1/2 * base * height.