# 8.7: Rectangle Facts

**At Grade**Created by: CK-12

**Rectangle Facts – Apply Measurement Formulas**

**Teacher Notes**

Each problem shows a rectangle separated into four smaller rectangles. The areas for three of the four rectangles are given. Students use the data provided and the formula for the area of a rectangle to figure out the dimensions of each of the three rectangles. Once they have found the dimensions of the three rectangles, they can figure out the dimensions of the fourth rectangle and determine its area.

**Solutions:**

- 20 square inches
- 32 square inches
- 32 square inches
- 6 square inches
- 56 square inches
- 8 square inches

**Rectangle Facts – Apply Measurement Formulas**

Rectangle is divided into 4 smaller rectangles.

1. Rectangle is separated into 4 smaller rectangles.

2. Rectangle is separated into 4 smaller rectangles.

3. Rectangle is separated into 4 smaller rectangles.

4. Rectangle is separated into 4 smaller rectangles.

5. Rectangle is separated into 4 smaller rectangles.

6. Rectangle is separated into 4 smaller rectangles.

*Extra for Experts***: Rectangle Facts – Apply Measurement Formulas**

1. Rectangle is separated into 4 smaller rectangles.

2. Rectangle is separated into 4 smaller rectangles.

3. Rectangle is separated into 4 smaller rectangles.

4. Rectangle is separated into 4 smaller rectangles.

5. Rectangle is separated into 4 smaller rectangles.

6. Rectangle is separated into 4 smaller rectangles.

**Solutions:**

- 21 square inches
- 24 square inches
- 15 square inches
- 80 square inches
- 48 square inches
- 108 square inches