Question

A wire is in the shape of a square of side 10 cm. If the wire is rebent
into a rectangle of length 12cm,find its breadth. Which encloses more
area, the square or the rectangle?

Answer 1

Answer:

Please mark me brainliest and friend me

Step-by-step explanation:

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