12.1-12.3 Flashcards
1
Q
face
A
2D shape
2
Q
edge
A
line segment
3
Q
vertex
A
point or corner where edges intersect
4
Q
polyhedron
A
3D shape
5
Q
Euler’s formula
A
F+V=E+2 (faces + vertices = edges + 2)
6
Q
cross section
A
intersection of solid and a plane
7
Q
isometric drawing
A
corner view of 3D object
8
Q
a cross section is described by
A
the 2D shape formed
9
Q
bases in prism
A
2 parellel congruent polygons
10
Q
lateral faces
A
each face that connects bases
11
Q
altitude (height)
A
perpendicular segment that connects parallel bases
12
Q
LA formula for prisims
A
Ph (Perimeter of base x height of object)
13
Q
SA formula for prisms
A
LA+2B (LA+ 2 x area of base)
14
Q
base in cylinder
A
2 parallel congruent circles
15
Q
LA formula in cylinders
A
Ph (2pirh)
