Question

a wire is in the shape of a rectangular. it's length is 40cm and breath is 22cm .
if the same wire is rebent in the shape of a square, what will be the measure
of each side. also find which shape encloses more area

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Answer 1

Answer:

1) let the rectangle length =l =40cm

breadth =b =22 cm

let the side of a square = a cm

if the same wire is rebent in the shape of a square then

perimeter of a square=perimeter of rectangle

4a=2(l+b)

4a =2(40+22)

4a =2*62

a =2*62/4

a=31 cm

therefore side of a square = a =31cm

2) area of the rectangle =l*b= 40*22=880 cm^2

3)area of the square=a^2 = (31)^2 =961 cm^2

therefore

area of the square is more

Answer 2

Step-by-step explanation:

find perimetre

p=2(l+b)

p=2(40+22)

=80+44

=124

measure of each side=124cm