Section D Practice Problems

47 meters. Sample response: First, I added 175 and 175 and that’s 350. I took 350 from 444 and that left 94. So, twice the other side length is 94. Since $2 \times 47 = 94$, the other side length is 47 meters.

Sample responses:

1. In the middle there is a rhombus. And the white shapes in the center of the rectangles look like rhombuses.
2. There are lots of rectangles going out from the middle in four directions.
3. It is hard to tell. There are white shapes with three sides but it looks like one of the sides is curved in most of the shapes, so they wouldn’t be triangles.

Sample response: One way to make 42 is $5 + 5 + 16 + 16$. The garden could be 5 feet long and 16 feet wide or 16 feet wide and 5 feet long. Another way to make 42 is $10 + 10 + 11 + 11$. The garden could be 10 feet wide and 11 feet long or 10 feet long and 11 feet wide. Another way to make 42 is $2 + 2 + 19 + 19$ but then the garden would not be wide enough.

204 inches. Sample response: I can see that two of the small squares are the same length as a big square. I also can see that two of the small squares are the same length as the long side of the rectangle. That means it takes 10 small squares to measure the long side of the big rectangle. Ten 6s is 60. It takes 7 small squares to measure the short side of the rectangle so that’s 42 inches. So, the perimeter is $60 + 42 + 60 + 42$ inches or $102 + 102$ inches, which is 204.