# Complete Math Formulas!

it has all the different formulas u need for math extended for IGCSE Cambridge University

- Created by: Sunny Shah
- Created on: 26-03-11 11:38

First 122 words of the document:

Math Formulae:

actual prof it

percentage profit = original cost ×100

actual loss

percentage loss = original cost ×100

principal×rate×time

simple interest = 100

amount = principal + interest

rate time

amount = principal×(1 + 100 )

distance = speed×time

x2 - y2 = (x + y)(x - y)

-b±b2-4ac

F or ax2 + bx + c, x = 2a

area of rectangle = length×width

1

area of trapezium = 2 ×sum of parallel sides×height

1

area of kite = 2 ×product of diagonals

1

area of a triangle = 2 ×base ×height

area of a circle = ×radius2

circumf erence of a circle = 2×radius

length of an arc = 360 ×2×radius

2

area of an sector = 360 × ×(radius)

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