By definition, the formula for finding the area of a trapezoid is A = [(b1 + b2) x h] / 2 Where, b1: Base 1 b2: Base 2 h: height, or distance between bases. Substituting we have: A = ((5 + 4) * (2.5)) / 2 A = 11.25 feet ^ 2
Answer: the area of the seat is: A = 11.25 feet ^ 2