Area Study Guide

Use the rectangle below to answer all parts. Each ■ is a square unit. Count to find the area of the rectangle.

Use the rectangle below to answer all parts. Each ■ is a square unit. Draw and label a different rectangle with the same area.

Complete the equation to determine the area of the shaded rectangle.

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On the grid below, draw and shade a rectangle that has an area of 15 square units. Label the side lengths.

Izzy determined the area of a figure to be 24 square inches. Which of the following could be the figure she is working on? Choose THREE correct answers.

• Figure A: 6 in. by 6 in. rectangle

• Figure B: 2 in. by 12 in. rectangle

• Figure C: 6 in. by 4 in. L-shaped figure

• Figure D: 4 in. by 2 in. plus 10 in. by 2 in. L-shaped figure

• Figure E: 3 in. by 8 in. rectangle

The figure below shows a big shaded rectangle with a small rectangle cut out of it.

a. Area of the shaded rectangle before it was cut: _ x _ = _

The figure below shows a big shaded rectangle with a small rectangle cut out of it. b. Area of the unshaded rectangle: _ x _ = _

The figure below shows a big shaded rectangle with a small rectangle cut out of it. c. Area of the shaded rectangle after it was cut: _ - _ = _

The figure below shows a small rectangle cut out of a big rectangle. Find the area of the shaded part of the figure.

All of these rectangles have the same area. Use the associative property and move the parenthesis to find the unknown side lengths.

• 8 x 6 = 48

  Area = 48 sq. cm.

• 8 x 6 = 40

  Area = 40 sq. cm.