Rectangle 1 has length 10 and width 20. rectangle 2 is made by multiplying each dimension of rectangle 1 by a factor of k=3. (a). are rectangle 1 and rectangle 2 similar?
(b). show that the perimeter of rectangle 2 is k times the perimeter of rectangle 1.
(c). show the the area of rectangle 2 is k^2 times the area of rectangle 1​