Answer:

10 cm

Step-by-step explanation:

Given That:

The Perimeter of Square = 64cm

Now;

Side of Square = 64/4 or 16cm

Area of Square = 16² or 256²

Area of Rectangle = 256 - 6 or 250 cm²

Length of Rectangle = 25 cm²

Breadth of Rectangle = 250/25 or 10 cm

[∴ The Breadth of the Rectangle is 10 cm]

Verified answer

The perimeter of a square is 64cm

The side of the square is  4

64/4

=16cm

The area of a square is 16²

=256cm

The area of the rectangle is 256−6=250cm²

The length of a rectangle is 25m

The breadth of rectangle is  250/25​

=10cm