Dimdima

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#### ARTICLEFormulas of Maths

* (a+b)2 = a2 + b2 +2ab
* a2 - b2 = (a+b) (a-b)
* (a-b)2 = a2 + b2-2ab
* (a+b)3 = a3 + b3 +3a2 b+3ab2
* (a-b)3 = a3 - b3 - 3a2 b+3ab2
* (a+b+c)3 = a3 +b3 +c3+2ab +2bc+2ac
* (x+a)(x+b) = x2 + x(a+b) + ab
* Area of a rectangle = Length*Breadth
* Perimeter of a rectangle = 2(Length + Breadth)
* Area of a Square = Side * Side
* Perimeter of a Square = 4 * Side
* Area of a parallelogram = Base * Height
* Area of a triangle = ½ * Base * Height
* Area of a trapezium = ½ * Height *(Base1 + Base2)
* Area of a circle = p * (radius)2
* Circumference of a circle = 2 * p * radius

Abhijeet Pattnaik
VIII B
Sundergarh, Orissa

#### Words of Appreciation

PRATEEK

You have written second formula wrong . it is a2 - b2 = (a+b)(a-b)

JOHNSON

Quite useful to the younger one to develop.

RAHUL

Good Work. This will help a lot of students.

Please send formulas. 1+1.1+1.21+1.331+1.4641 total 6.1051

ANUBHAV MALVIYA

Dear sir; please send me hints tricks and short cuts and formulae of Physics,Chemistry and Mathematics for PET and AIEEE level ASAP.along with if u have detailed solutions of mppet 2008 exam of above subjects (PCM)

SHASHANK

Please send me hints tricks and short cuts and formulae of Physics,Chemistry and Mathematics for PET and AIEEE level ASAP. Along with if you have detailed solutions of mppet 2008 exam of above subjects (PCM).

AJMAL

good work abijeet. try to add more. this is very useful mathematical formula at all level. share ur knowledge

R.SARAVANAN

Ya very nice problems. Very useful data. Thanku very much.

PRABHU.P

TANZEEM

MERINA

It provides knowledge . Well done !!

MERINA

It gives us knowledge but something is missing there.

MANEESH MAVI DURVESHPUR

Very good.

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