6th Grade Unit 5 3D Shapes or solids

Which of the solids to the right is? LOOK AT THE PICTURE 1) a right pyramid 2) an oblique pyramid 3) a right cone 4) an oblique cone

1) B 2) D 3) C 4) A

Match the nets with the solids A,B, AND C

A -c B-b C-a

What are the properties a prism?

A solid object with two identical ends and flat sides. The shape of the ends give the prism a name, such as the Triangular Prism There are also Square Prisms, Pentagonal Prisms and more. •

What is the definition of coplanar lines?

Coplanar lines are lines that lie on the same plane.

What does Euler's Rule state?

E + 2 = V + F

What are the main shapes of solids?

Prisms and Pyramids

What is a solid net?

Solid shapes can be made from plane shapes. This is done by drawing the net of the solid on a piece of paper. The net shows how the faces of the solid are joined to each other. When these faces are folded along their edges, the solid is formed. Some nets are quite easy to make, while others are quite difficult. The net of a cube is shown to the right.

What are some solids that are neither prisms or pyramids?

cones, cylinders, or spheres

What are the three parts of a solid?

edge, face, and vertex

How many faces, edges, and vertices does a pentagonal prism have?

edges: 12 Faces: 6 Vertices: 8

How many faces, edges, and vertices does a rectangular prism have?

edges: 12 Faces: 6 Vertices: 8

How many faces, edges, and vertices does a hexagonal prism have?

edges: 18 Faces: 8 Vertices: 12

How many faces, edges, and vertices does an octagonal prism have?

edges: 24 Faces: 10 Vertices: 16

How many faces, edges, and vertices does a triangular prism have?

edges: 9 Faces: 5 Vertices: 6

What is a right pyramid?

has its axis perpendicular to its base

What is an oblique pyramid?

is one in which its axis is not perpendicular to the base

What is the definition of polyhedra?

it is the plural of a polyhedron. They are 3 D figures whose faces are plane (flat) shapes with straight edges.

What are intersecting lines?

lines that cross

What are parallel lines?

lines that never intersect

What are skew lines?

non-coplanar lines that never intersect and aren't parallel.

What are the two types of pyramids?

oblique and right

What are the properties a pyramid?

pyramid is a polyhedron that has a base, which can be any polygon, and three or more triangular faces that meet at a point called the apex. These triangular sides are sometimes called the lateral faces to distinguish them from the base.