An original square has side lengths of 6. a scaled copy has side lengths of 5. what is the scale factor used to create the scaled copy?

1.2

Step-by-step explanation:

Given

Original length of square is 6

Also scaled copy has side length of 5

So using unitary method to find the correct scaling

6 unit of square is equivalent to 5 units of scaled copy

Thus 1 unit of copy is equivalent to  1.2 units of square length

So in final answer we need to multiply by a factor of 1.2 to  get the original square length dimensions.

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk