Area of Composite Shapes
Area of Composite Shapes

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

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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