Rectangle A measures 12 cm by 3 cm. Rectangle B is a scaled copy of Rectangle A. Select all of the...

1. Rectangle A measures 12 cm by 3 cm. Rectangle B is a scaled copy of Rectangle A. Select all of the measurement pairs that could be the dimensions of Rectangle B.
A. 6 cm by 1.5 cm
B. 10 cm by 2 cm
C. 13 cm by 4 cm
D. 18 cm by 4.5 cm
E. 80 cm by 20 cm
2. Rectangle A has length 12 units and width 8 units. Rectangle B has length 15 units and width 10 units. Rectangle C has length 30 units and width 15 units.
a. Is Rectangle A a scaled copy of Rectangle B? If so, what is the scale factor?
b. Is Rectangle B a scaled copy of Rectangle A? If so, what is the scale factor?