geometry! solid geometric figures cari czarnecki

GEOMETRY!Solid Geometric Figures

Cari Czarnecki

KEY WORDS!

• Faces are the surfaces of a geometric shape.

• Edges are where 2 faces meet.• Vertices are the point where 3 or more

faces meet.• Base is the flat surface of a shape.

FACEEDGE

VERTEX

CUBES!

• A cube has…– 6 faces (all squares)– 12 edges– 8 vertices

• Examples of cubes…– Ice cubes, tissue box, dice

6 FACES

12 EDGES

8 VERTICES

RECTANGULAR PRISMS!

• A rectangular prism has…– 6 faces– 12 edges– 8 vertices

• Examples of rectangular prisms…– Juice box, radio, buildings

Rectangle Base

Rectangular Faces

CUBE VS RECTANGULAR PRISM!

• Can you name some differences between a cube and a rectangular prism?

PYRAMID!

• A pyramid has…– 5 faces (4 triangles, 1 shape)– 8 edges– 5 vertices

• Examples of pyramids…– Egyptian pyramids!

Base

TriangleFace

CYLINDERS!

• A cylinder has…– 2 faces (circles)– No edges or vertices– Curved surface

• Examples of cylinders…– Can of tuna, penny, can of soda

Circle Base

Curved Surface

CONES!

• A cone has…– 1 face (base)– 1 vertex

• Examples of a cone…– Ice cream cone, traffic cone, funnel

Base

Vertex

SPHERES!

• A sphere has…– No faces– No edges– No vertices

• Some examples of spheres are…– Ball, marble, globe

Can you find any examples of these

shapes in the room?

Assessment!

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