Perimeter and Area of Irregular Shape

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In this section we will discuss about Perimeter and Area of Irregular Shape.

Perimeter : It is the length of the boundary of a closed figure.
In other words, we can say that the Perimeter is the total length of the boundary or sum of all sides.
It is measured in m (meter) , cm(centimeter) , Km (kilometer ) and miles.

Examples on Perimeter and Area of Irregular Shape :

1)

Perimeter= AB + BQ + QC + CD + DS + SE + EF + FR + RG + GH + HP + PA
= 1 + 3 + 3 + 1 + 3 + 3 + 1 + 3 + 3 + 1 + 3 + 3
= 28 cm
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2) Find the Perimeter of the given figure.


Solution :
Perimeter = AB + BC + CD + DE + EF + FA

= 10 cm + 8 cm + 2 cm + 4 cm + 8 cm + 2 cm

= 34 cm

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3) Calculate the perimeter of the following figure:


Solution :
Perimeter = 2 + 2 + 2 + 2 + 2 = 10 cm

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4) Find the area of figure.


Solution :

Area of the figure = Area of I + Area of II + Area of III

Now, Area of figure I = 3.4 x 2.5

= 8.5 cm²

Area of figure II = (6 - 3)x(3.4 - 2)

= 3 x 1.4

= 4.2 cm²

Area of figure III = 3 x 1

= 3 cm²

Total area = 8.5 + 4.2 + 3

= 15.7 cm²

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Mensuration : Area and Perimeter

• Perimeter and Area of Irregular Shape
• Area and Perimeter of the Rectangle
• Area of Square (perimeter of square)
• Perimeter of Parallelogram(Area of Parallelogram)
• Area of Rhombus(Perimeter of rhombus)
• Area of Trapezoid (Trapezium)
• Triangle Area (Perimeter of triangle)
• Herons Formula

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