A wire is in the shape of a square of side 25 cm. If the wire is rebent into a rectangle of length 30 cm,find its breadth. Which encloses more area- the square or the rectangle and by how much?
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A wire is in the shape of a square of side 25 cm. If the wire is rebent into a rectangle of length 30 cm,find its breadth. Which encloses more area- the square or the rectangle and by how much?
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perimeter of the square=25×4=100
length of wire=perimeter of square
p=2(l+b)
100=2(30+b)
100=60+2b
100-60=2b
40=2b
b=40/2
b=20
area of square=25×25
=625
area of rectangle = l×b
=30×20
=600
difference between the areas=625-600
=25
area of square is25cm greater than rectangle
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praveena21
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perimeter of the square=25×4=100
length of wire=perimeter of square
p=2(l+b)
100=2(30+b)
100=60+2b
100-60=2b
40=2b
b=40/2
b=20
area of square=25×25
=625
area of rectangle = l×b
=30×20
=600
difference between the areas=625-600
=25
area of square is25cm greater than rectangle