Mathematics Page

2 DIMENSIONAL SHAPES

Name	Area	Perimeter
Square	a²	4 x a
Rectangle	a x b	2 x a + 2 x b
Triangle	� x h x b	2 x p + b
Circle	πr²	π x d
Parallelogram	h x b	2b + 2p
Trapezium	� x h (x + y)	x + y + 2p
Ellipse	�(a x b)	.
Rhombus	χ x y	.

Name	Surface Area	Volume
Cube	6 x a²	a³
Rectangular Prism	2 x a x b + 2 x b x c + 2 x a x c	a x b x c
Cylinder	2πr² + 2πrh	πr²h
Triangular Prism	A x c	2A + 2(c x p) + (b x c)
Pyramid	4A + (b x c) assuming the base is a square	1/3 x A x h
Cone	πrp + πr²	1/3 x πr²h
Sphere	4πr²	4/3 x πr³

NB:
A = area of triangular face
p = pythagoras' hypotenuse calculated according to the theory below.
π = 3.14 (rounded to 2 decimals)

p² = h² + b²
p = �(h² + b²)

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