2- & 3-Dimensional Objects

Question 0

A regular polyhedron(all the sides are congruent & all the angles are congruent). There are only 5 regular polyhedral (tetrahedron, cube, octahedron, dodecahedron, or icosahedrons)

Answer 0

Platonic solid

Question 1

an object composed of 3 or more closed sides

Answer 1

Polygon

Question 2

On object made up of simple shapes, such as triangles, rectangles, trapezoids, &circles

Answer 2

Composite figure

Question 3

A 3-dimensional figure whose surfaces are polygons

Answer 3

Polyhedron

Question 4

The surfaces of a polyhedron

Answer 4

Face

Question 5

a segment that is formed by the intersection of two faces

Answer 5

Edge

Question 6

A point where three or more edges intersect

Answer 6

Vertex

Question 7

A two-dimensional pattern that you can fold to form a three-dimensional figure

Answer 7

Net

Question 8

A polyhedron with six faces, each of which is square

Answer 8

Cube

Question 9

The space that a figure occupies. If is measured in cubic units

Answer 9

Volume

Question 10

If two space figures have the same height and the same cross-sectional area at entry level, then they have the same volume

Answer 10

Cavalieri’s principle

Question 11

The same shape and all their corresponding dimension are proportional

Answer 11

Similar solids

Question 12

The ratio of corresponding linear dimensions of two similar solids

Answer 12

Similarity ratio

Question 13

Intersection of a 3-dimensional figure and a plane

Answer 13

Cross-section

Question 14

A polyhedron with exactly two congruent, parallel faces

Answer 14

Prism

Question 15

The congruent and parallel faces of a prism

Answer 15

Bases

Question 16

The non-parallel faces of a prism

Answer 16

Lateral faces

Question 17

The perpendicular segment that hound the planes of the bases, aka height

Answer 17

Altitude of prism

Question 18

The lateral faces are rectangles and the height is and edge of the prism

Answer 18

Right prisms

Question 19

The lateral faces are rectangles and the height is outside the prism

Answer 19

Oblique prism

Question 20

The sum of the areas of the lateral faces

Answer 20

Lateral area of prism

Question 21

Sum of the lateral area and the area of the two bases

Answer 21

Surface area of a prism

Question 22

The product of the area of a base and the height of the prism

Answer 22

Volume of a prism

Question 23

Like a prism, has two congruent and parallel bases which are circles

Answer 23

Cylinder

Question 24

A perpendicular segment that joins the planes of the bases

Answer 24

Altitude of a cylinder

Question 25

The length of the altitude

Answer 25

Height of a cylinder

Question 26

A cylinder whose height is located in the cylinder

Answer 26

Right cylinder

Question 27

A cylinder whose height is located outside of the cylinder

Answer 27

Oblique cylinder

Question 28

Area of the resulting rectangle when you "unroll" it

Answer 28

Lateral area of the cylinder

Question 29

The sum of the lateral area and the areas of the two circular bases

Answer 29

Surface area of a cylinder

Question 30

The product of the area of the base and the height of the cylinder

Answer 30

Volume of a cylinder

Question 31

A polyhedron in which one face (the base) can be any polygon and the other faces (the lateral faces) are triangles that meet at a common vertex

Answer 31

Pyramid

Question 32

Pyramids are named by?

Answer 32

The shape of its base

Question 33

The perpendicular segment from the vertex to the planes of the base

Answer 33

Altitude of pyramid

Question 34

The length of the altitude

Answer 34

Height of pyramid

Question 35

A pyramid whose base is a regular polygon and whose lateral faces are congruent isosceles triangles

Answer 35

Regular pyramid

Question 36

The length of the altitude of a lateral face of a pyramid

Answer 36

Slant height

Question 37

The sum of the areas of the congruent lateral faces

Answer 37

Lateral area of pyramid

Question 38

The sum of the areas of the congruent lateral faces and the area of the base

Answer 38

Surface area of a pyramid

Question 39

1/3 the product of the area of the base and the height of the pyramid

Answer 39

Volume of a pyramid

Question 40

A "pointed" like pyramid but it's base is a circle

Answer 40

Cone

Question 41

The altitude is a perpendicular segment from the vertex to the center of the base

Answer 41

Right cone

Question 42

The length of the altitude

Answer 42

Height of cone

Question 43

The distance from the vertex to a point on the edge of the base

Answer 43

Slant height of a cone

Question 44

1/2 the perimeter of the base times the slant height

Answer 44

Lateral area of a cone

Question 45

The sum of the lateral area and the area of the base

Answer 45

Surface area of a cone

Question 46

1/3 the product of the area of the base and the height of the cone

Answer 46

Volume of cone

Question 47

The set of all points in space equidistant from a given point called the center

Answer 47

Sphere

Question 48

A segment that has one endpoint at the center and the other endpoint on the sphere

Answer 48

Radius

Question 49

A segment passing through the center with end points on the sphere

Answer 49

Diameter

Question 50

The center of the sphere is also the center of the center circle

Answer 50

Great circle

Question 51

Circumference of the great circle is also that of the sphere

Answer 51

Circumference

Question 52

What the great circle divides the sphere into

Answer 52

Hemispheres

Question 53

Four times the product of pi and the square of the radius of the sphere

Answer 53

Surface area of a sphere

Question 54

4/3 the product of pi and the cube of the radius of the sphere

Answer 54

Volume of a sphere

Question 55

A line from the center of a regular polygon at right angles to any of its sides

Answer 55

Apothem