Formulae Flashcards
1
Q
Sine rule
A
a/Sin(A) = b/Sin(B)=c/Sin(C)
2
Q
Cosine rule
A
a^2=b^2+c^2-2bc+Cosine(A)
3
Q
Quadratic formula
A
X= -b +or- Root of b^2 - 4ac/ 2a
4
Q
Quadratic for when coefficient is greater than 1
A
ax^2+bx+c=0
5
Q
Area of a triangle
A
0.5BH OR 0.5abSin(c)
6
Q
Area of square or rectangle
A
ab
7
Q
Area of trapezium
A
0.5abXh
8
Q
Area of parallelogram
A
BH
9
Q
Area of a circle
A
PiR^2
10
Q
Circumference
A
PiD
11
Q
Pythagoras’ theorem
A
a^2+b^2=c^2
12
Q
Sector of a circle
A
Theta/360 x PiR^2
13
Q
Curved edge of specific part of circle
A
Theta/360 x 2PiR
14
Q
5^2
A
25
15
Q
3^-2
A
1/9
