Question

a wire is in the shape of square of side 10 cm . if the wire is rebent into a rectangle of length 12cm find its breadth . which figure enclosed more area and by how much? ​

Answer 1

Let a be the 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,

⇒4a=2(l+b)

⇒40=2(12+b)

⇒b=18 cm

Area of square=a

2

=10

2

=100cm

2

Area of rectangle=lb=12×18=216cm

2

⇒ Area of rectangle is greater by 116cm

2

.

Answer 2

HOPE IT HELPED........