Cross Sections and Naming 3D Figures

Front

What is a 3D solid?

Back

A three-dimensional solid is a shape that has length, width, and height, such as a cube, sphere, or pyramid.

Front

What is a cross section?

Back

A cross section is the shape that is exposed when a solid is cut through by a plane.

Front

What is a sphere?

Back

A sphere is a perfectly round 3D shape where every point on the surface is equidistant from the center.

Front

What is a rectangular prism?

Back

A rectangular prism is a 3D shape with six rectangular faces, where opposite faces are equal.

Front

What is a pyramid?

Back

A pyramid is a 3D shape with a polygonal base and triangular faces that meet at a point called the apex.

Front

What is a net in geometry?

Back

A net is a two-dimensional representation of a 3D shape that can be folded to form the solid.

Front

What is the difference between a triangular pyramid and a triangular prism?

Back

A triangular pyramid has a triangular base and three triangular faces, while a triangular prism has two triangular bases and three rectangular faces.

Front

What shape does a vertical cross section of a cylinder create?

Back

A vertical cross section of a cylinder creates a rectangle.

Front

What is the formula for the volume of a cube?

Back

The volume of a cube is calculated using the formula V = side³.

Front

What is the formula for the surface area of a rectangular prism?

Back

The surface area of a rectangular prism is calculated using the formula SA = 2(lw + lh + wh), where l is length, w is width, and h is height.