formula of area for class 6
Answers
Answer:
Step-by-step explanation:
Square = side2
Rectangle = length × width
List of Maths formulas for class 6
Formulas Related to Number System
ab−−√=a−−√b√
ab−−√=a√b√
(a−−√+b√)(a−−√−b√)=a−b
(a+b√)(a−b√)=a2−b
(a−−√+b√)2=a+2ab−−√+b
apaq=ap+q
(ap)q=apq
apaq=ap−q
apbp=(ab)p
If a and b are integers, to rationalise the denominator of 1a√+b multiply it by a√−ba√−b
Integer Properties : For any integers a and b,
Addition of integers is commutative a + b = b + a
Addition of integers is associative a + ( b + c ) = ( a + b) + c
0 is the identity element under addition a + 0 = 0 + a = a
Multiplication of integers is commutative. a x b = b x a
1 is the identity element under multiplication 1 x a = a x 1 = a
Mensuration Formulas for Two dimensional Figures
2-Dimensional Figures Area (Sq.units) Perimeter (Units)
Square (side)2 4 x side
Triangle ½ ( b x h ) Sum of all sides
Rectangle length x breadth 2 ( length + breadth )
Circle πr2 2πr
Basic Algebra Formula:
Consider the simple quadratic equation ax2+bx+c=0
Where, a is the coefficient of x2
b is the coefficient of x
c is a constant term
The quadratic formula to find the variable x is, x=−b±b2−4ac√2a