Question

find the area of the figure.
area = \boxed{} square units

Explanation:

Step1: Identify trapezoid side lengths

Count grid units: top base $b_1=3$, bottom base $b_2=10$, height $h=7$.

Step2: Apply trapezoid area formula

Use $A=\frac{1}{2}(b_1+b_2)h$.
$$A=\frac{1}{2}(3+10)\times7$$

Step3: Calculate the final value

Simplify the expression:
$$A=\frac{1}{2}\times13\times7=\frac{91}{2}=45.5$$

Answer:

45.5 square units