Question

22. Length and breadth of a rectangular wire are 9 cm and 7 cm respectively. If the wire is bent into a square, find the length of its side​

Answer 1

Answer:

Length of the rectangle = 9cm

Breadth of the rectangle = 7cm

so, the area of the rectangle = 9×7 = 63cm^2

Now the area of rectangle = area of the resulatnt square

So area of square = 63 cm^2

therefore, its side = √63 = 3√7cm

Answer 2

Explanation:

according to question

perimeter of rectangle=perimeter of square

2(l+b)=4a

l+b=2a

(9+7)/2=a

(16)/2=a