12.1-12.3 Flashcards Preview

Honors Geometry > 12.1-12.3 > Flashcards

Flashcards in 12.1-12.3 Deck (21):
1

Lateral faces

Faces that are not bases

2

Surface area

The sum of the areas of the faces

3

Net

2D representation of a 3D shape

4

Oblique prism

Lateral edges are not perpendicular to bases

5

Lateral edges

Segments that connect vertices of lateral faces to bases

6

Lateral area

Sum of the areas of the lateral faces

7

Right prism

Lateral edge is perpendicular to both bases

8

Cylinder

A solid with congruent circular bases

9

Polyhedron

A solid that is bounded by polygons which are called faces

10

Regular polygon

All faces are congruent

11

Convex polyhedron

None of the faces are concave (inward )

12

Platonic solids

Regular polyhedrons cube(6), tetrahedron (4), octahedron (8), dodecahedron(12), icosahedron (20)

13

Euler's theorem

F+V = E+ 2

14

Cross section

Intersection of plain and solid

15

Rectangular prism SA

2B + Ph
B= area of base
P= perimeter
H is height

16

Triangular prism SA

2B + Ph
Base = triangular

17

Cylinder SA

2 pie r squared + 2 pie r h

18

Regular Pyramid SA

B + Pl/2

19

Cone SA

Pie r squared + pie r l

20

Sphere SA

4 pie r squared

21

Right cone lateral area

Pie r l