Question

area of quadrilaterals
score: 1/5 penalty: 0.25 off
question
find the area of trapezoid defg. round your answer to the nearest tenth if necessary.
(image of trapezoid defg with sides: fg = 11 in, fe = 9.9 in, gd = 9.9 in, de = 19.8 in, and height 8.8 in)
answer attempt 1 out of 2
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Explanation:

Step1: Identify trapezoid bases and height

Bases: $GF = 11$ in, $DE = 19.8$ in; Height: $8.8$ in

Step2: Apply trapezoid area formula

Area = $\frac{1}{2} \times (base_1 + base_2) \times height = \frac{1}{2} \times (11 + 19.8) \times 8.8$

Step3: Calculate the result

$\frac{1}{2} \times 30.8 \times 8.8 = 15.4 \times 8.8 = 135.52 \approx 136.1$ (rounded to nearest tenth)

Answer:

136.1