4.

a) Suppose you have a rectangular shaped roof of length 40 metre and breadth 20 metre and you want to put

Question

4.

a) Suppose you have a rectangular shaped roof of length 40 metre and breadth 20 metre and you want to put

pots on its entire boundary at every one metre on the roof, then how many pots you can put on that roof?​

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Rylee 2 years 2021-06-22T02:38:40+00:00 1 Answers 0 views 0

Answers ( )

  1. Cora
    0
    2021-06-22T02:40:37+00:00
    Reply

    Step-by-step explanation:

    Breadth= 22cm

    Perimeter of the rectangle= Length of the wire

    =2(l+b)= 2(40cm + 22cm)

    =2\times622×62cm = 124cm

    Now, the wire is rebent into a square.

    Perimeter= 124cm

    4\times side=1244×side=124

    Therefore side= \frac{124}{4}

    4

    124

    cm= 31cm

    So, the measure of each side= 31cm

    Area of rectangular shape= l\times bl×b

    =40cm\times22cm40cm×22cm

    =880cm^2880cm

    2

    Area of a square shape= \left(Side\right)^2(Side)

    2

    =\left(31\right)^2=961cm^2(31)

    2

    =961cm

    2

    Since 961cm^2\ >\ 880cm^2961cm

    2

    > 880cm

    2

    Hence, the square encloses more area.

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