University:
High School
Course:
High School Mathematics
Academic year:

2022
Views:

141

Pages:

2
Author:

Cyncuncew7o63

Three-Dimensional Figures In your own words, write the meaning of each vocabulary term. polyhedron is a solid that is bounded by polygons (straight edges) Polyhedra prism pyramid Not Polyhedra cylinder cone sphere face the polygon shape(s) that make up the polyhedron. edge the outer boundary of the face "line" vertex the point where the ends of the faces meet. cross section the intersection of a plane and the solid square rectangle solid of revolution is your 3-D figure formed by rotating a 2-D around an axis axis of revolution the line the 2-D shape is rotated around Extra Practice In Exercises 1 and 2, tell whether the solid is a polyhedron. If it is, name the polyhedron. yes, rectangular pyramid (octahedron) No... "curved", "rounded" In Exercises 3-6, describe the cross section formed by the intersection of the plane and the solid. Square triangle trapezoid 7-sided polygon, 7-gon, septagon In Exercises 7 and 8, sketch the solid produced by rotating the figure around the given axis. Then identify and describe the solid. "lamp shape", bottom of a cone "circus tent" or "cone on top of a cone"