Lesson 10-6 Solid Figures
Review What is the formula for the circumference of a circle? C=∏d What is the formula for the area of a circle? A= ∏r What does ∏ equal? 3.14
Solid Figures By the end of this lesson you will be able to name solid figures.
Vocabulary Polyhedron A three dimensional object, or solid figure, with flat surfaces, called faces, that are polygons. Edge When two faces of a solid figure share a side Vertex A point at which three or more edges meet
Practice How many faces, edges, and vertices does each figure have?
Prisms A Polyhedron with two congruent, parallel bases, and other faces that are all parallelograms. A prism is named for the shape of its base.
Cylinders Has two congruent, parallel bases, but bases of a cylinder are always circular.
Pyramids Has one polygon shaped base, and the other faces are triangles that come to a point. A pyramid is named for the shape of its base.
Cones Has a circular base and a curved surface that comes to a point.