Equations Flashcards
1
Q
Area of a trapezium
A
(a+b) x h
——————
2
2
Q
Circumference
A
pii x D
3
Q
Area of circle
A
pii x r squared
4
Q
Area of a sector
A
(angle/360) x pii x r squared
5
Q
Volume of a pyramid
A
1/3 x base area x height
6
Q
Simple Interest
A
Initial amount x interest rate x time
7
Q
Pythagoras theorem
A
a squared + b squared = c squared
8
Q
Direct proportion
A
y = kx
9
Q
Inverse proportion
A
y = k
——
x
10
Q
Area of a triangle
A
1/2 x base x height
11
Q
Area of triangle
A
1/2 x ab sinC
12
Q
SoH CaH ToA
A
sin (x) = opp/hyp
cos (x) = adj/hyp
tan (x) = opp/adj
13
Q
Arc length
A
(sector angle/360) x circumference
14
Q
Volume of a cone
A
1/3 x height x pii x r squared
15
Q
Volume of a pyramid
A
1/3 x base x length x width
