CPM Homework Banner

Home > MC2 > Chapter 9 > Lesson 9.2.3 > Problem 9-68

9-68.

Hank is planning his vegetable garden. He has created the scale drawing below. He is planning for the actual area for the tomatoes to be feet by feet. All angles are right angles.  

  1. Rectangular garden, 2 by unknown inches. Tomatoes are on the left side: Height 2; Length, 1.5. Zucchini is to the right of the tomatoes. Height: 1 for the rest of the length. Above the zucchini is the Herb Garden. Height: 1 Length: 1.5. The beans complete the garden Height: 1 and length: unknown.How many feet in the garden does each inch on the drawing represent?

    If the actual area for the tomatoes is feet by feet, and the scaled drawing is inches by inches, you can write a ratio comparing the dimensions of the actual garden to the dimensions of the scaled drawing.

    Solve for .

     

  2. What are the length and width of the herb garden on the drawing in inches?

    Since you already know the length of the herb garden, all you need to do is find the width.

    By examining the diagram, you can tell that the width of the herb garden is the width of the zucchini section subtracted from the width of the tomato section.

  3. What are the length and width of the real herb garden in feet?

    In part (b), you found that the dimensions of the herb garden in the drawing are  in by in.
    Using the scale factor found in part (a), what are the dimensions of the real herb garden?

    ft by ft

  4. What is the area of the real herb garden (in square feet)?

    The area of a rectangular figure is its length multiplied by its width.

    sq ft

  5. Remember that there are inches in one foot. If Hank measures the real herb garden in square inches instead of square feet, what will its area be?

    First convert the dimensions of the real herb garden into inches by using the ratio in:1ft.

    ft by ft → in by in

    How can you use a figure's dimensions to find its area? See part (d).