Perimeter of a Figure


 
 
Concept Explanation
 

Perimeter of a Figure

A Perimeter is the length of the boundary of any closed geometric figure.

Shape

Perimeter Formula

Description

Figure
Rectangle 2(Length + Breadth) Length and breadth are the dimensions of rectangle         
Square 4x Let x be the side of square             
Triangle a + b + c a, b and c being the side lengths of triangle                
Parallelogram 2(Base + Height) Base and Corresponding Height are the dimensions of rectangle    
Rhombus 4x Let x be the side of rhombus          
Kite 2x + 2y x = length of one pair, y = length of second pair                

Illustration: .Calculate the perimeter of a square with each side measuring 5 units.

Solution: given side length of square = 5 units

  now we know that perimeter of a square = 4 X side

                                                                   = 4 X 5

                                                                   = 20 units

Illustration : .Calculate the perimeter of a triangle with each side measuring 4 cm

Solution: given sides of triangle are 4cm,4cm,4cm

Now we know that perimeter of a triangle with sides a,b,c = a+b+c

thus perimeter of given triangle = 4+4+4

                                                 = 12 cm

Sample Questions
(More Questions for each concept available in Login)
Question : 1

Find the perimeter of figure given below

Right Option : B
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Explanation
Question : 2

If the perimeter of the given figure is 24 cm. Then what will be the measure of the unknown side?

Right Option : B
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Explanation
Question : 3

Find the perimeter of the figure given below

Right Option : A
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Explanation
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