Question

A wire is in the shape of a square. Perimeter of this square is 40 cm . If the wire is rebent into a rectagle of length 12 cm, find its breadth.​

Answer 1

Answer:

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Answer 2

Answer:

$Let \: a \: be \: side \: of \: a \: square ,l \\ be \: the \: length \: and \: b \: be \: the \: breadth \\ of \: rectangle$

As length of wire is constant ,perimeter of both shapes would be same.

$\implies \: 4a = 2(l + b)$

$\implies \: 40 = 2(12 + b)$

$\implies \: b = 18cm$

$area \: of \: square \: = {a}^{2} = {10}^{2} = {100}cm$

$area \: of \: rectangle = l \times b$

$= 12 \times 8 = 216 {cm}^{2}$

$\implies \: area \: of \: rectangle \: is \: greater$

Step-by-step explanation:

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