Home » Area and Perimeter
Math Formula Basic | Triangle

Smart Math Formula Triangle, A triangle has three corners or vertices and three sides or edges which are straight line segments.

A Triangle has sides and the included angles of two triangles are correspondingly equal, the two triangles are congruent.


Area of Triangle. A = ½ . p . h

Perimeter of Triangle. P = a + b + c
 
Hypotenuse of Triangle. H²[bc²]= ab² + ac²
 
Note :
p = pedestal , h = high , sides of triangle is a,b,c and Hypotenuse = H

Example


Question:

What is the area and perimeter of a triangle, if the triangle pedestal 4, height triangle 3,hypotenuse 5

Smart Math Answer :
Area of Triangle = ½ . p . h = ½ . 4 . 3 = 6
Perimeter of Triangle = a + b + c = 4 + 3 + 5 = 12

Question :
Right triangle pedestal [ab.4, height [ac)] 3. the length hypotenuse is

Smart Math Answer :

H² = ab² + ac²
H² = 4² + 3² = 16 + 9 = 25
H = √25 = 5

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Math Formula Basic | Square

Smart Math Formula SquareSmart Math Formula, A square is a regular polygon with four sides. It has four right angles and parallel sides.

 Area of Square = s²

Perimeter of Square = 4.s

s = √A       

Note : s = side

 

Example 


Question: Find the area, perimeter and of a square with the given side 8.
 
Question : Find the area.
Area = s² = 8² = 64.
 
Question : Find the perimeter.
Perimeter = 4 . s = 4 . 8 = 32.

Question : Find the side for Area 121
side = √A =  √121 = 11
 
As with the example above was counting on, square area and perimeter.
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Math Formula Basic | Rectangle

Smart Math Formula RectangleSmart Math Formula Rectangle, The rectangle is defined as a quadrilateral where all four angles are right angles. It has two pairs of parallel sides.

b = breadth, l = length
A = Area, P = Perimeter 

If that is the area declared and asked to find, length or breadth of the formula is as below:
Area of Rectangle       = l . b
length of Rectangle     = A : b
breadth of Rectangle   = A : l

 If that is the perimeter declared and asked to find, length or breadth of the formula is as below: 
Perimeter of Rectangle = 2 [ l + b ]
length of Rectangle       = P : 2 - b
breadth of Rectangle     = P : 2 - l
     

Example


Question : Find the area and perimeter of a rectangle for the breadth 5 and the length 20.

  Question : Find the area.
            Area = l . b = 20 . 5 = 100

  Question : Find the perimeter.
            Perimeter = 2 [l + b] = 2 [20 + 5] = 50.
Rectangle the perimeter declared
Question : Find the length and breadth of a rectangle for the perimeter 32, breadth 6

 Question : Find the length.
length = P : 2 - b = 32 : 2 - 6 = 10
 
 
The above example will clearly illustrates how to calculate the Area and Perimeter of a Rectangle manually, so you will be Smart Math Formula Rectangle.
  

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