Question

what is the area?
9 in
12.4 in
20 in
square inches

Explanation:

Step1: Recall trapezoid area formula

The area of a trapezoid is given by $A = \frac{1}{2}(b_1 + b_2)h$, where $b_1$ and $b_2$ are the lengths of the two parallel sides, and $h$ is the height.

Step2: Identify given values

$b_1 = 9$ in, $b_2 = 20$ in, $h = 12.4$ in

Step3: Substitute values into formula

$$A = \frac{1}{2}(9 + 20) \times 12.4$$

Step4: Calculate sum of the bases

$9 + 20 = 29$

Step5: Compute the final area

$$A = \frac{1}{2} \times 29 \times 12.4 = 14.5 \times 12.4 = 182.2$$

Answer:

182.2 square inches