sides of a rectangle are increased by a scale factor of 4. The perimeter of the smaller rectangle is 20cm what is the perimeter of the larger rectangle?
80 is the perimeter of the larger rectangle because the sides of the smaller one is 6,6,4 and 4 because they add up to 20. If you multiple each by 4 you get 24, 24, 16, and 16. When you add them together you get 80.
