Cross Section Lesson

Cross Sections

What is a cross section?

-- a surface or shape that is or would be exposed by making a straight cut through something

Multiple Choice

What is the base shape of a triangular pyramid?

• triangle

• circle

• rectangle

• octagon

Multiple Choice

What is the base shape of a square prism?

• triangle

• square

• rectangle

• octagon

Multiple Choice

What is the base shape of a cylinder?

• circle

• square

• rectangle

• octagon

If the cut is parallel to the base, the resulting cross section will be the same shape as the base.

The shapes to the right are all being cut parallel to the base.

Parallel to the Base

Direction of the Cross Section

If the cut is perpendicular to the base, the resulting cross section will be the same shape as the face.

The shapes to the left are all being cut perpendicular to the base(s).

Perpendicular to the Base

Direction of the Cross Section

Multiple Choice

Cutting a 3-D shape perpendicular to its base will result in the base shape.

• TRUE

• FALSE

Multiple Choice

What best describes the two-dimensional shape created when a triangular prism is cut parallel to its bases?

• square

• rectangle

• circle

• triangle

Multiple Choice

What best describes the two-dimensional shape created when a triangular prism is cut perpendicular to its bases?

• square

• rectangle

• circle

• triangle

Multiple Choice

Describe the cross section.

• rectangle
• square
• parallelogram
• circle

Multiple Choice

Describe the cross section.

• rectangle
• trapezoid
• oval
• parallelogram

Multiple Choice

Describe the cross section.

• trapezoid
• triangle
• rectangle
• square

Multiple Choice

What shape will the horizontal cross-section of a cone be?

• Dome
• Circle
• Pyramid
• Triangle

Multiple Choice

What shape does this cross section make?

• circle
• Trapezoid
• Rectangle
• Parallelogram

Multiple Choice

What cross-section is formed by slicing through a cube parallel to any face?

• rectangle
• parallelogram
• square
• triangle

Multiple Choice

William is drawing pictures of cross sections of the right circular cone above.

Which drawing can not be a cross section of a cone?

Multiple Choice

A plane intersects a hexagonal prism. The plane is perpendicular to the base of the prism. Which two-dimensional figure is the cross section of the plane intersecting the prism?

• triangle

• trapezoid

• hexagon

• rectangle

Multiple Choice

A right hexagonal prism is shown below. A two-dimensional cross section that is perpendicular to the base is taken from the prism.

Which figure describes the two-dimensional cross section?

• triangle

• rectangle

• pentagon

• hexagon

Multiple Choice

What shape will the vertical cross -section of a cylinder be?

• Circle
• Triangle
• Rectangle
• Ellipse

Cross Section: A cross section is like a slice of a 3-D figure. If you slice through a 3-D figure, the cross section is the shape of the slice.​

Subject | Subject

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