Width Study Guide

Definition of Width

The width of a shape or object is the measurement of the distance from one side to the other, usually the shorter of the two dimensions. It is a fundamental concept in geometry and is used to describe the size of various two-dimensional and three-dimensional figures.

Measuring Width

When measuring the width of a shape or object, it's important to use the appropriate units of measurement such as inches, centimeters, or feet, depending on the context. The width can be measured using a ruler, tape measure, or other measuring tools.

Examples of Width

Examples of width include the width of a rectangle, square, circle, triangle, and other geometric shapes. In real-world applications, width is used to describe the size of various objects such as doors, windows, tables, and more.

Formulas for Calculating Width

The formulas for calculating the width of common shapes are as follows:

Rectangle: width = length / 2
Square: width = side length
Circle: width (diameter) = 2 * radius
Triangle: width = base length

Practice Problems

Now that you have learned about width, try solving the following practice problems:

Find the width of a rectangle with a length of 8 inches and a width of 4 inches.
Determine the width of a circle with a radius of 5 centimeters.
Calculate the width of a square with a side length of 10 meters.

Conclusion

Understanding the concept of width is essential for solving various mathematical and real-world problems involving shapes and objects. By practicing the calculation of width and applying the appropriate formulas, you can develop a strong grasp of this important geometric concept.

◂Math Worksheets and Study Guides Eighth Grade. Perimeter and area

The resources above cover the following skills:

Geometry (NCTM)

Analyze characteristics and properties of two- and three-dimensional geometric shapes and develop mathematical arguments about geometric relationships.

Precisely describe, classify, and understand relationships among types of two- and three-dimensional objects using their defining properties.

Use visualization, spatial reasoning, and geometric modeling to solve problems.

Use geometric models to represent and explain numerical and algebraic relationships.

Measurement (NCTM)

Apply appropriate techniques, tools, and formulas to determine measurements.

Select and apply techniques and tools to accurately find length, area, volume, and angle measures to appropriate levels of precision.

Develop and use formulas to determine the circumference of circles and the area of triangles, parallelograms, trapezoids, and circles and develop strategies to find the area of more-complex shapes.