Objective - To identify features of three-dimensional solids. Polyhedrons - Closed figures bounded by polygons. Prisms Pyramids Other Polyhedrons Non-Polyhedrons Cylinders Cones Spheres Oblique Cylinder

Use the solid below to name the following. C 5 Vertices 8 Edges 5 Faces

Sketching the Net of a 3-D Solid 2-D Net

Sketching the Net of a 3-D Solid 2-D Net

Sketch the net for the 3-D solids below. 1) 2) 3)

Determine whether the following are nets of a cube. 1) 4) Yes Yes 2) 5) No Yes 3) 6) Yes Yes

Any three points will always be coplanar. Non-coplanar Q P P When a set of points could be in the same plane. When a set of points can not be in the same plane. Any three points will always be coplanar. It takes at least four points to be non-coplanar.

in different planes that do not intersect and are not parallel. Parallel Lines Perpendicular Lines - Lines in the same plane that do not intersect. - Lines that meet at 90 . X Y A B N M C D Skew Lines - Lines in different planes that do not intersect and are not parallel.

Use the figure to find the following: A B E F D C H G Two pairs of Parallel Lines Two pairs of Parallel Planes Two pairs of Skew Lines

Describe the intersection of the following. Two Lines (1-D) Two Solids (3-D) Point 0-D Plane 2-D Two Planes (2-D) Two Times (4-D) Past Future Present Line 1-D Space 3-D

Describe all the ways that three planes could intersect in space. No Intersection Intersects at a Line Intersects at a Point