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To find the area of a trapezoid, you can use the formula:
A = 1/2 * (base1 + base2) * height
In this case, base1 = 31 cm, base2 = 43 cm, and height = 25 cm.
A = 1/2 * (31 + 43) * 25
A = 1/2 * 74 * 25
A = 37 * 25
A = 925 cm²
Therefore, the area of the trapezoid-shaped purse is 925 cm².