Lesson 2

Variables in Proportion

Est. Class Sessions: 2–3

Daily Practice and Problems

Teacher Notes
X

TIMS Task

    1. 2250 sq. ft.
    2. 3.75 sq cm
    1. 12 in.; a square
    2. 7 in.; not a square
  3. 1 ft. by 64 ft.; 2 ft. by 32 ft.;
    4 ft. by 16 ft., 8 ft. by 8 ft.

F. Area of Rectangles

  1. Find the area of these rectangles.
    1. length = 30 ft., width = 75 ft.
    2. length = 1.5 cm, width = 2.5 cm
  2. Solve the following rectangle problems. Tell whether the rectangle is a square.
    1. area = 144 sq. in.; AB = 12 in. How long is AD?
    2. area = 56 sq. in.; EF = 8 in. How long is EH?
  3. A rectangle has an area of 64 sq. ft. Find all the possible rectangles with whole number sides.