Objective To identify features of threedimensional solids Polyhedrons

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

Use the solid below to name the following. E A D 5 Vertices B C 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 2) 5) No 3) Yes 6) Yes

Coplanar Non-coplanar Q P When a set of points could be in the same plane. P 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.

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

Use the figure to find the following: A E B F D H Two pairs of Parallel Lines C G 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 Two Planes (2 -D) Plane 2 -D Two Times (4 -D) Past Present Future 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