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1.3*l

2.P=6*l

3.Edges in a cube=12
Total lenght of the edges of a cube-12*l
4.d=2*r

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S*S= a OF A SQUARE
4*S= p OF A SQUARE

2*l+b=p OF A RECTANGLE
l*b=a OF THE RECTANGLE

S*S = A OF THE EQUILATERAL TRIANGLE
3*S=P OF THE EQUILATERTAL TRIANGLE

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Properties which we have learned
Commutative Property = (a+b) =  (b+a)
Associative Property = a + (b + c) = (a + b) + c
Distributive Property = a x ( b + c ) = ab + ac
Closure Property = a + b = c

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Commutative Property= [AXB] =[BXA]
Associative Property = [A+B]+C
Distributive Property=AX [ B+C]
Closure Property = A+B

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properties we have learned so far

1.Commutative Property

2.Associative Property

3.Distributive Property

4.Closure Property

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Letters used to find the unknown.

P of square:(side-sx4)
A of square: s x s

P of rectangle: 2x(L+B)
A of rectangle: L x B

P of scalene triangle= a + b + c

P of equilateral triangle: Sidex3

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Properties which we have learned
commutative property a+b = b+a
associative property (a+b)+c=a + (b +c)
distributive property
closure property

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Properties learnt so far
Commutative Property - (a+b) = (b+a), (a*b) = (a*b)
Associative Property - (c*a)*b = (b*c)*a = (a*b)*c
Distributive Property - g(h*i) = (g*h)+(g*i)
Closure Property -

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1) Side of triangle = L
P = 3*l
2) Side of regular hexagon = L
P = 6*l
3) Edges of cube = L
Total edges = 12
So, edges = 12*L
4) Diameter - AB
Radius = CP
The D is double the R.

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Rectangle =
P = 2*(L+B)
A = L*B

Square =
P = 4*S
A = S*S

Equilateral Triangle =
P = S*3

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Properties which we have learnt        ( Saanvi Sinha ) 

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Properties which we have learnt        ( Saanvi Sinha ) 

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Commutative Property - (a+b)=(b+a)
Associative Property - (a+b)+c= (c+a)+b=(b+a)+c
Distributive Property - px(y+o)=(pxo)+(pxy)
Closure Property

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PROPERTIES LEARNT SO FAR....
1. COMMUTATIVE PROPERTY
(a+b)=(b+a)
(axb) = (bxa)
2. ASSOCIATIVE PROPERTY a+(b+c) b+(a+c) c+(a+b)
3. DISTRIBUTIVE PROPERTY a*(b+c) b*(a+c) c*(a+b)

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Commutative Property=[A+B]=B+A
Associative Property=[a+b]=c=[c+a]+b
Distributive Property
Closure Property

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L*3 - Q.1
L*6- Q.2
Total length of edges of a cube is L*12 - Q.3
L*6- Q.4
D=2*r - Q.5

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Properties we have learnt -
Commutative Property - a*b = b*a
Associative Property - a + (b+c) = (a+b) +c = (c+a) + b
Distributive Property -

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commutative property axb =bxa
associative property (a+b)+c
distributive axb +b xc)
closure

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Properties we learnet so far
1.Commutative property
2.Associative property=(a+b)+c=(c+a)+b=(b+c)+a
3.Distributive property
4.Closure property

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Commutative Property
Associative Property
Distributive Property
Closure Property

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Commutative Property
Associative Property
Distributive Property
Closure Property

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commutative property
distributive property
associvtive property

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Commutative Property  = a+b = b+a
Associative Property = (a+b)+c = (c+a)+b
Distributive Property = z * (x+y) = (z*x) + (z*y)
Closure Property

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Commutative Property= [AXB] =[BXA]
Associative Property = [A+B]+C
Distributive Property=AX [ B+C]
Closure Property = A+B

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PROPERTIES LEARNT SO FAR....
1. COMMUTATIVE PROPERTY
(a+b)=(b+a)
(axb) = (bxa)
2. ASSOCIATIVE PROPERTY
3. DISTRIBUTIVE PROPERTY
ax(b+c)= (axb)+(axc)

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perimeter of rectangle = 2 x( L+B )
area of rectangle = a=lxb
perimeter of square = s x 4
area of square = side x side
perimeter of triangle = p=a+b+c
area of triangle=1/2 x bxh

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d=2xr
d=rx2
d=2r

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Length of rectangle= 5 cm
Area of rectangle= 15 cm
breadth of rectangle =x
x= 15 ➗ 5= 3 cm

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1.  3 xl  or l x3
2. total length of all the edges of a cube =12 xl
3. 6 xl or l x6
4. d=2 x r

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Answer 1 - l3
Answer 2 - l6
Answer 3 - Edges - 12, each one is equal
Total Length - l*12 = l12
Answer 4 - d = r*2

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d = 2 * r
d = r * 2
d = 2r

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Properties we have learnt so far,

1. Commutative
( a+b is same as b+a)
(axb=bxa)

2. Associative
(a+b)+c= (c+b)+a = (b+c)+a = (b+a)+c

3. Distributive
ax(b+c)= (axb)+(axc)

4. Closure
Sum of 2 nos. will always be a whole no. (not for division and subtraction)

Eg: a+b=c / axb=d

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Edges in a cube=12
Answer:Total length of the edges of a cube=12xL

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s of a square= 5
no. of s in a square= 4
= 5x4
=20
so the p of the square =20

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1. P=3xl  /  lx3
2. P=6xl  /   lx6
3. Total length of the edges of a cube: 12xl  /  lx12
4. d=2xr

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l * 6
6 * l

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12 * L
L * 12

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LX6
6XL

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Side = L
Sides in a triangle = 3
3*L = 3L,
So, 3L = Perimeter

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L * 6
6 * L

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L * 3
3 * L

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p of square 4*s
p of equal atrial triangle 3*s
p of rectangle 2*l+b
A of square s*s
A of rectangle l*b
p of hexagon 6*sides

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perimeter of rectangle = 2x[l+b]
perimeter  of square     =  4xs
perimeter of triangle   =  3xs
area of rectangle        = lxb
area of square              = sxs
are of triangle = sxs

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P of square:(side-sx4)
A of square: side x side
P of a triangle= a + b+ c
A of a triangle= 1/2 h*b

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s*s= a of square
l*b = a of rectangle
A/b=l
A/l=b
5*S= P OF REGULAR PENTAGON
Q1 ) P=3*L
Q2) P= 6*L
Q3) TOTAL LENGTH OF THE EDGES OF CUBE = 12*L
Q4)  D=2*R
PROPERTEIS LEARNT SO FAR
COMMUTATIVE PROPERTY ( A+B)= (B+A)
ASSOCIATIVE  PROPERTY ( A+B) +C = ( B+ C)+A = ( A+C )+B
CLOUSERE PROPERTY
DISTRUBUTIVE  PROPERTY L*(M+N) = ( L*M) + (L*N )

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Length of square=5cm
beadth of square=x
Area of suare=5cm
x=5÷5=1cm

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4*s = Perimeter of square
A of square = Side * Side
L*b = area of rectangle
2 * (L+B) = perimeter of rectangle

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S*S = area of square
2*(l+b) = are of rectangle

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Formula's
Perimeter - Equilateral triangle ( 3*S )
Square (4*S)
Rectangle 2*(L+B)
Regular Pentagon (5*S)
Regular Hexagon (6*S)
Regular Octagon (8*S)

Area's - Equilateral triangle ( S*S )
Square (S*S)
Rectangle (L*B)
Regular Pentagon (S*S)
Regular Hexagon (S*S)
Regular Octagon (S*S)

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I have used algebra when I was finding out the area and perimeter of square or rectangle or triangle.
Ex.  A= L*B    ,    P= 2* (L+B)  = Rectangle
A= 1/2  B * H  ,   P= A+B+C    = Triangle
A= S*S   ,   P=4*S  = Square

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1.perimeter of equvi triangle=3xside
2.perimeter of triangle =2x(l+b)
3 area of rectangle =lxb
4.perimeter of regular hexagon=side x6
5.perimeter of decagon =side x10

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P of square:(side-sx4)
A of square: side x side
P of a triangle= side + side+ side
A of a triangle= 1/2 h*b

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4*s = Perimeter of square.
s*s = Area of square
l*b = Area of rectangle
2*(l+b) = Perimeter of rectangle
s*6 - Perimeter of Regular Hexagon
s*10 - Perimeter of Regular Decagon