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The given shape is a trapezoid. The area of a trapezoid is given by the formula:
area = 0.5 * (sum of parallel sides) * height
In this case, the parallel sides are the top (8 cm) and bottom (10 cm), and the height is the left side (4 cm).
area = 0.5 * (8 + 10) * 4
area = 0.5 * 18 * 4
area = 9 * 4
area = 36 square centimeters
The area of the figure is 36 square centimeters.