Formulas Flashcards
1
Q
Area of right angled triangle
A
1/2 x base x perpendicular hight
2
Q
Area of non-right angled triangle
A
1/2 x base x perpendicular hight x ab sin c
3
Q
Area of a parallelogram
A
Base x hight
4
Q
Area of a trapezium
A
1/2 x (a+b)x hight
5
Q
Area of a circle
A
Pie x r2
6
Q
Circumference of a circle
A
Pie x diameter
7
Q
Volume of any prism
A
Cross section area x length
8
Q
Surface area of any prism
A
Area of each face
9
Q
Speed / distance / time
A
Speed =distance divide by time Don’t forget decimals
10
Q
Mass/density/volume
A
Mass = density x volume
11
Q
What is Pythagoras
A
a2+b2=c2
12
Q
3 types of parallel lines
A
Alternate
Corresponding
Corientaling
13
Q
Interior angles in any polygon
A
(n-2)x180
14
Q
Exterior angles in any polygon
A
360/n
15
Q
What does probability add to
A
1=100%
