Geometry formulas Flashcards
1
Q
Triangle area (2 sides + angle)
A
A = 1/2absinθ
2
Q
Triangle area (3 sides)
A
A = 1/2bh
3
Q
Circle area
A
A = πr^2
4
Q
Circle circumfrence
A
2πr
5
Q
Sector of a circle (area)
A
(1/2)r^2θ
6
Q
Sector of a circle (segment length)
A
s = rθ (θ in radians)
7
Q
Sphere volume
A
4/3πr^3
8
Q
Sphere surface area
A
4πr^2
9
Q
Cylinder volume
A
πr^2h
10
Q
Cone volume
A
1/3πr^2h
11
Q
Cone area
A
πr(sqrt(r^2+h^2))
