Naming and Slicing Solids

A cone is cut by a plane that is perpendicular to its base. Which of the following could be the shape of the cross-section formed?

• Circle

• Triangle

• Rectangle

• Trapezoid

A cylinder is cut parallel to the base. What is the shape of the cross-section formed?

• Circle

• Rectangle

• Triangle

• Trapezoid

The cross-section of a 3D figure is shaped like a circle. Which could NOT have been the 3D figure?

• Sphere

• Pyramid

• Cylinder

• Cone

Which shape can NOT be formed by a plane that intersects a triangular prism?

• A Circle

• A Trapezoid

• A Triangle

• A Rectangle

Which of the following cannot be created by slicing a cone?

• An Oval

• A Circle

• A Triangle

• A Trapezoid

A three-dimensional shape is sliced. The results from slicing are a triangle, a rectangle, and a trapezoid. What was the original 3D shape?

• Triangular Prism

• Triangular Pyramid

• Rectangular Pyramid

• Rectangular Prism

If you cut a cylinder perpendicular to its bases, what shape will you get?

• A Circle

• A Triangle

• A Square

• A Rectangle

Cross sections that are parallel to the base are the same as the 3D figures...

• Face/Side

• Base

• Shape

Cross sections that are perpendicular to the base are the same as the 3D figures...

• Face/Side

• Base

• Shape

What is a cross section of a three-dimensional object?

• The intersection of two lines on a graph.

• A two-dimensional shape created by slicing the object in various ways.

• The multiplication symbol.

• Any angle on the object that has a measure of 90 degrees.