What is a geometric solid? A closed three dimensional object made up of flat surfaces which are geometric shapes.
How do we classify solids? We classify solids based on their faces, edges and vertices.
What IS a face? The flat surface on a solid figure
What is an edge? The line where two faces meet.
What is a vertex? The corner where edges and faces meet.
SUMMARY 1. ) Explain how faces, edges, and vertices are different.
Prisms What do these all They allis have at A prism a solid with have in common? parallelograms for sides least one set of and a set of parallel, parallel faces. congruent bases.
Triangular Prisms
Rectangular Prisms
Cubes
What are these Prisms?
SUMMARY 1. ) What is a prism?
Pyramids What do these all They allcommon? come towith a have in A pyramid is a solid triangular sides and point at the top. only one base.
Rectangular Pyramids
Triangular Pyramids
Which are pyramids?
SUMMARY 1. ) What is a pyramid? 2. ) Would you rather be a pyramid or a prism? Why?
Prism vs. Pyramids • One base Prisms • Two bases • Triangular sides Polygons • Rectangular sides Base • Point at top Face • No point at top • No parallel 3 D faces • Parallel faces
SUMMARY 1. ) Describe some differences between pyramids and prisms. 2. ) How could you turn a prism into a pyramid?
Cylinders What do these all They all have a set A cylinder is a solid with a have in common? ofsetparallel of parallel, congruent, circular bases.
Cylinders
SUMMARY 1. ) What is a cylinder? 2. ) How is a cylinder like a prism?
Cones What do these all They all have a circle at have in common? A cone is a solid with one the bottom and a circular base and a point at the top.
Cones
SUMMARY 1. ) What is a cone? 2. ) What do you think it would feel like to be a cone?
Cylinders vs. cones Cylinders • One base • Point at top • No parallel faces • Two bases circles Base Face 3 D • No point at top • Parallel faces
SUMMARY 1. ) Describe some differences between cylinders and cones. 2. ) Draw a picture of something in real life that contains a cylinder and a cone put together.