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Find the perimeter of a rectangle …

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Find the perimeter of a rectangle whose length is 40cm and diagonal is 41cm.

    • Posted by Medha Lulla 6 years, 8 months ago

    CBSE > Class 07 > Mathematics
    • 2 answers

    Naren S 6 years, 8 months ago

    Breadth is 9 CM. So perimeter is equal to 98 cm

    1Thank You

    P Rana 6 years, 8 months ago

    For ■ABCD: Diagonal =41 cm L=40cm According to Pythagoras theorem BCsq=ABsq+ACsq Thus 41sq=ABsq +40sq 1681=ABsq+1600 ABsq=1681-1600 =81 square root =9cm.Ans.

    2Thank You

    ANSWER
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