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Home > AC > Chapter 1 > Lesson 1.1.1 > Problem 1-5


The area of the rectangle below is square units. On graph paper, draw and label all possible rectangles with an area of square units. Use only whole numbers for the dimensions (measurements).  

by , by ,  by , and  by

  1. Find the perimeter of each of these rectangles. You may want to refer to the Math Notes box for this lesson for more information on the perimeter of a figure.

    The perimeter is the distance around the outside of a figure.

    , , , and units

  2. Of these rectangles, which has the largest perimeter? Which has the smallest perimeter? Describe these shapes. Remember to use complete sentences.

    The largest perimeter is a thin rectangle, P = units;
    the smallest is close to a square shape, P = units.