Maths Formulas Flashcards
1
Q
Area of a rectangle, square and parallelogram
A
A = bh
2
Q
Area of a triangle
A
A =1/2 bh
3
Q
Area of a rhombus
A
A = 1/2xy
Where equal the diagonals
4
Q
Area of a trapezium
A
A = 1/2 ( a+b)h
Where a and b are the lengths are the parallel lines
5
Q
Area of a circle
A
A= Pi r squared
6
Q
Surface area of a cone
A
Pi r squared + Pi rs
7
Q
Surface area of a sphere
A
4 Pi r squared
8
Q
Surface area of a cylinder
A
2 Pi r squared + 2 Pi rh
9
Q
Volume of a prism
A
Ah
10
Q
Volume of a pyramid
A
1/3 Ah
11
Q
Volume of a sphere
A
4/3 Pi r cubed
12
Q
Volume of a cylinder
A
Pi r squared h
13
Q
Circumference
A
2 Pi r
14
Q
Perimeter of a sector
A
2r x o/360 x 2 Pi r
