Question

a wire is in the shape of a square of side 60m if the wire re bent into a rectangular shape of breadth 30m what is the length of the rectangular shape

Answer 1

Step-by-step explanation:

perimeter of square is = perimeter of rectangle

Answer 2

Answer:

Let a be the side of a square, l be the length and b be the breadth of rectangle.

 ⇒ Area of rectangle is greater by 116

.

Step-by-step explanation:

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