Geometry Flashcards
1
Q
Circle Circumference
A
2πr
2
Q
Circle Area
A
πr ^2
3
Q
Trapezoid
A
h•(b1+b2)/2
טרפז
4
Q
Parallelogram Perimeter
A
P=2(a+b)
5
Q
Parallelogram Area
A
A=b×h
6
Q
Rhombus Perimeter
A
מעויין
P=4s
7
Q
Rhombus Area
A
d1d2/2
Base•height
8
Q
Cube Surface volume
A
S^3
9
Q
Rectangular Prism (Cuboid) Surface Area
A
SA=2(lw+lh+wh)
10
Q
Rectangular Prism (Cuboid) volume
A
V=l×w×h
11
Q
Sphere Surface Area
A
SA=4πr^2
12
Q
Sphere Volume
A
4pi r^3/3
13
Q
Cylinder Surface Area
A
SA=2πr^2 +2πrh
גליל
14
Q
Cone Surface Area
A
חרוט
SA=πr^2+πrl
(L side )
15
Q
Cone Volume
A
πr^2h/3
16
Q
Pyramid (Square Base) Surface Area
A
B+pl/2
17
Q
Pyramid (Square Base) volume
A
Bh/3
18
Q
Ellipse Perimeter (Approximate):
A
π[3(a+b)−{ (3a+b)(a+3b)]
19
Q
Ellipse area
A
πab
20
Q
Regular Pentagon Perimeter
A
P=5s
21
Q
Regular Pentagon area
A
[{5(5+2{2)s^2]\4
22
Q
Regular Hexagon Perimeter
A
6s
23
Q
Regular Hexagon area
A
[(3{3)/2]s^2
24
Q
Regular Octagon Perimeter
A
8s
25
Regular Octagon area
A=2(1+{2) s^2
26
Annulus (Ring Shape – Area between Two Circles) Perimeter
P=2π(R+r)
27
Cylinder volume
Pi r^2•h
