Vocabulary 3D Geometry

Faces of a 3D Shape are

• the flat surfaces

• the lines connecting two flat surfaces

• where two or more edges meet

The Edges of a 3D Shape are

• line segments where two faces meet

• corners where two or more lines meet

• the flat surfaces

What shape is this?

• A cone

• A sphere

• A pyramid

• A prism

What shape is this?

• A square based pyramid

• A triangular based pyramid

• A prism

• A cone

Congruent means

• having the same size and shape

• having different size and shape

• one is an enlarged version of the other

The lateral faces of a pyramid are

• triangles

• rectangles

• squares

A hemisphere is

• one half of a sphere

• one quarter of a sphere

• three quarters of a sphere

• two sphere put together

Volume is

• the amount of space an object takes up

• the distance around the shape

• all of the areas of the faces

Surface Area is

• the area of all of the faces

• the amount of space an object takes up

• the distance around the shape

A net of a shape is

• a plane figure that can be folded to make a 3D shape

• a shape shaded with a net pattern

• the distance around the outside of a shape