Question

rectangle P’R’S’T is a dilation of rectangle PRST and scale factor is 3. write an equation for the perimeter of P’R’S’T if the original sides of the rectangle were x and y

Answer 1

Explanation:

Answer 2

The perimeter formula for the original PRST rectangle is:
P = 2x + 2y
To find the perimeter formula of the rectangle P'R'S'T we must use the scale factor and substitute in each dimension.
We have then:
P '= 2 (3x) +2 (3y)
Rewriting:
P '= 6x + 6y
P '= 6 (x + y)
Answer:
An equation for the perimeter of P'R'S'T is:
P '= 6 (x + y)