Question

what is the area, in square centimeters, of the isosceles trapezoid below? answer attempt 1 out of 2 a = cm²

Explanation:

Step1: Recall area formula

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

Step2: Identify values

Here, $b_1 = 15.5$ cm, $b_2 = 5.7$ cm, and $h = 8$ cm.

Step3: Substitute values into formula

$A=\frac{(15.5 + 5.7)\times8}{2}=\frac{21.2\times8}{2}$.

Step4: Calculate

First, $21.2\times8 = 169.6$. Then, $\frac{169.6}{2}=84.8$ $cm^2$.

Answer:

$84.8$