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A wire in the shape of …

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A wire in the shape of square of side 10cm. If the wire is rebent into rectangle of length 12cm, find its breadth. Which encloses more area, the square or the triangle

    • Posted by Kartikeya Khatri 6 years, 10 months ago

    CBSE > Class 07 > Mathematics
    • 1 answers

    Gaurav Seth 6 years, 10 months ago

    Side of square=10cm
    Perimeter of square=4 × side=4×10=40cm
    Hence the total length of wire is 40cm

    Permiter of rectangle=2×(length+breadth)
    =2×(12+breadth)
    Since length of wire remains same:
    2×(12+breadth)=40
    12+breadth=20
    Breadth=20-12=8cm

    Area of square=(side)²
    =10²=100cm²

    Area of rectangle= length × breadth
    =12 × 8=96cm²

    Difference in area =100-96=4cm²
    Hence area of square is more by 4cm²

    4Thank You

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