Answer:
42cm^2
21 ft^2
Explanation:
Cut the shape into rectangles. Add or subtract to find the lengths of the sides of the rectangles. Find the area of the smaller rectangles. Use:
Area =
length × width
Add the areas together for the final answer. There are several ways to do each problem. Three ways are shown here to do each question. Obviously, you don't have to do the question three times. Pick one that makes sense to you. See image.