答There are several ways to approach this question, but one possible method is to use the formula for the area of a trapezoid, which is:A = (b1 + b2)h/2where A is the area, b1 and b2 are the lengths of the parallel bases, and h is the height (or altitude) of the trapezoid.In this case, we know that the shorter base (b1) is 8 cm, the longer base (b2) is 12 cm, and the height (h) is 6 cm. Therefore, we can substitute these values into the formula and simplify:A = (8 + 12) x 6/2A = 20 x 3A = 60 cm²Therefore, the area of the trapezoid is 60 square centimeters.
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