Question

The area and the perimeter of a square A and B respectively if the sides are double the area become A' and the perimeter become P' find 1) A' : A and P' : P .

Answer 1

Let the side of the square be x.

Perimeter, P= 4x

Area, A = x^2

When sides are doubled, length of side= 2x

P'= 8x

A' = 4x^2

A':A = 4x^2 /x^2 = 4: 1

P" :P = 8x/4x = 2:1

Answer 2

Answer:

Step-by-step explanation: