Question

first find the total area of the driveway. a = ft²

Explanation:

Step1: Split shape into 3 parts

Divide the driveway into a rectangle, a smaller rectangle, and a right triangle.

Step2: Calculate area of large rectangle

Area = length × width = $30 \times 20 = 600$ $\text{ft}^2$

Step3: Calculate area of small rectangle

The height of this rectangle is $25 - 20 = 5$ ft. Area = $10 \times 5 = 50$ $\text{ft}^2$

Step4: Calculate area of right triangle

Base and height are both 10 ft. Area = $\frac{1}{2} \times 10 \times 10 = 50$ $\text{ft}^2$

Step5: Sum all areas

Total area = $600 + 50 + 50$

Answer:

700 $\text{ft}^2$