Complete Math Formulas!

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

HideShow resource information
Preview of Complete Math Formulas!

First 122 words of the document:

Math Formulae:
actual prof it
percentage profit = original cost ×100
actual loss
percentage loss = original cost ×100
simple interest = 100
amount = principal + interest
rate time
amount = principal×(1 + 100 )
distance = speed×time
x2 - y2 = (x + y)(x - y)
F or ax2 + bx + c, x = 2a
area of rectangle = length×width
area of trapezium = 2 ×sum of parallel sides×height
area of kite = 2 ×product of diagonals
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
area of an sector = 360 × ×(radius)

Other pages in this set

Page 2

Preview of page 2

Here's a taster:

volume of a pyramid = 3 ×base area×height
volume of a sphere = 3 × ×radius3
T SA of a sphere = 4 ×radius2
T SA of a hemisphere = 3 ×radius2
Angles formed from two points on the circumference are
equal to other angles, in the same arc, formed from those two
Angles formed by drawing lines from the ends of the
diameter of a circle to its circumference form a right angle. So is a right angle.…read more

Page 3

Preview of page 3

Here's a taster:

A tangent to a circle forms a right angle with the circle's radius, at the point of
contact of the tangent.
Also, if two tangents are drawn on a circle and they cross, the lengths of the two
tangents (from the point where they touch the circle to the point where they
cross) will be the same.…read more

Page 4

Preview of page 4

Here's a taster:

The angle formed at the centre of the circle by lines originating from two points
on the circle's circumference is double the angle formed on the circumference of
the circle by lines originating from the same points. i.e. a = 2b.
The opposite angles in a cyclic quadrilateral are supplementary.…read more

Page 5

Preview of page 5

Here's a taster:

×b = ab
= b
sin = hypotenuse
cos = hypotenuse
tan = adjacent
Opposite(c) Hypotenuse (b)
B Adjacent (a) C
a = sinb c
sin A B = sin C
a2 = b2 + c2 - 2bccos A
cos A = 2bc
area of a triangle = 2 ×b×c×sin A
sin = sin (180° - )…read more

Page 6

Preview of page 6

Here's a taster:

° - )
sin = cos (90° - )
cos = sin (90° - )…read more


No comments have yet been made

Similar Mathematics resources:

See all Mathematics resources »See all resources »