Formulas Flashcards
1
Q
Area of a Rectangle
A
Base x Height
2
Q
Area of a Parallelogram
A
Base x Height
3
Q
Area of a triangle
A
(Base x Height) / 2
4
Q
Area of a Trapezium
A
1/2 (a+b) x height
5
Q
Area of a Circle
A
π r²
6
Q
Circumference of a Circle
A
2 πr
7
Q
Volume of a Pyramid
A
1/3 * base area * vertical height
8
Q
Volume of a Cylinder
A
π r² * h
9
Q
Quadratic formula in the form of ax squared + bx + c = 0
A
(-b±√(b²-4ac))/(2a)
10
Q
sin x =
A
Opposite / Hypotenuse
11
Q
cos x =
A
Adjacent / Hypotenuse
12
Q
tan x =
A
Opposite / Adjacent
13
Q
Sin (30) =
A
Root 1 / 2
14
Q
Sin 45 =
A
root 2 / 2
15
Q
sin 60 =
A
root 3 / 2
16
Q
cos 30 =
A
root 3 / 2
17
Q
cos 45 =
A
root 2 / 2
18
Q
cos 60 =
A
root 1 / 2
19
Q
tan 45 =
A
root 1 / root 3
20
Q
tan 45 =
A
1
21
Q
tan 60 =
A
root 3 / 1
22
Q
Sine rule
A
Sin A / a = Sin B / b
23
Q
Cosine Rule =
A
a2 = b2 +c2 - 2bcCosa
24
Q
Area of a Triangle using sign
A
1/2 ab Sin c
