Geometry formulas Flashcards
1
Q
circumference of a circle
A
c = 2πR
2
Q
area of a circle
A
a = πr^2
3
Q
area of a parallelogram
A
a = bh
4
Q
area of a trapezium
A
a = 1/2 (a+b) h
5
Q
area of a triangle
A
a = 1/2bh
6
Q
SA of a cylinder
A
2πrh + 2πr^2
7
Q
SA of a cone
A
πrS + πr^2
8
Q
SA of a sphere
A
4πr^2
9
Q
Volume of a cone
A
V = 1/3 πr^2h
10
Q
Volume of a cylinder
A
V = πr^2h
11
Q
Volume of a prism
A
V = Ah
12
Q
Volume of a sphere
A
V = 4/3πr^3
13
Q
Volume of a pyramid
A
V = 1/3Ah
14
Q
Pythaora’s theorem
A
a^2 + b^2 = c^2
15
Q
A
