Course Content
Integer
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Properties
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Sets
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Sets- definition
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Types of sets
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Types of sets- contd.
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Problems
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Fractions
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What is fraction(M1)
00:00
Multiplication and division(M2)
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Module 3
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Module 4
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Rational numbers
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Module 1
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Module 2
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Module 3
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Percentage
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Module 1
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Module 2
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Module 3
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Module 4
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Module 5
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Module 6
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Exponents
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Module 1
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Speed, Distance and Time
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Module 1
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Module 2
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Algebraic expressions
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Module 1
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Module 2
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Module 3
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Module 4
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Revision
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Revision
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Simple Linear Equations One variable
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Module 1
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Module 2
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Pairs of angles
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Module 1
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Module 2
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Properties of triangle
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Module 1
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Module 2
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Constructions
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Module 1
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Perimeter and area
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Module 1
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Module 2
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Module 3
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Module 4
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Module 5
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Module 6
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Revision
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Revision
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Data Handling
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Module 1
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Module 2
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Module 3
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Revision
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Revision
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Class 7- MATHEMATICS
    About Lesson

    Perimeter & area

    • Perimeter is the total boundary length of a closed figure

      • Perimeter of a square –

    4x length of a side

      • Perimeter of a rectangle –

     2x(length + breadth)

    • Perimeter of triangle

    Sum of the three sides

    • Area is the amount of a surface covered by any shape. 

      • Area of a rectangle 

    Length x breadth (lb)

    • Length  = area ÷ breadth

    • Breadth = area ÷ length 

    • Area of square = side x side

    • Side of area =√its area

    • 1 hectare = 10,000m2

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