Videos, solutions, and lessons to help Grade 7 students learn how to describe the two-dimensional figures that result from slicing three-dimensional figures, as in plane sections of right rectangular prisms and right rectangular pyramids.

Common Core: 7.G.3

### Suggested Learning Targets

Common Core for Grade 7, Common Core for Mathematics, More Math Lessons for Grade 7

**What is a cross section?**

A cross section is the two-dimensional shape that results from cutting a three-dimensional shape with a plane. The shape of the cross section depends on the type of "cut" (vertical, angled, horizontal).

Describe the two-dimensional figures that result from slicing three-dimensional figures (7.G.3)

In this lesson you will learn how to describe the cross sections of a right rectangular prism by slicing at different angles.
In this lesson you will learn how to describe the cross sections of
a right rectangular pyramid by slicing at different angles.

Visualizing Geometry

Grade 7 / Math / Geometry

Lesson Objective

Use properties of similarity and build 3D models and cross-sections.

Cross Sections

Slicing 3-D Figures

Cross Sections of 3 Dimensional Figures
Cross sections

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

Common Core: 7.G.3

- I can describe two dimensional figures that result from
slicing three-dimensional figures (by a plane parallel or
perpendicular to a base or face).

Common Core for Grade 7, Common Core for Mathematics, More Math Lessons for Grade 7

A cross section is the two-dimensional shape that results from cutting a three-dimensional shape with a plane. The shape of the cross section depends on the type of "cut" (vertical, angled, horizontal).

Describe the two-dimensional figures that result from slicing three-dimensional figures (7.G.3)

In this lesson you will learn how to describe the cross sections of a right rectangular prism by slicing at different angles.

Grade 7 / Math / Geometry

Lesson Objective

Use properties of similarity and build 3D models and cross-sections.

Cross Sections

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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