Answer:
C. side a is 3.5 inches and side b is 3 inches
Step-by-step explanation:
The scale factor 6:1 means that the sides of bigger rectangle are six times bigger than the smaller rectangle.
To find the sides of the smaller rectangle, divide each side of the bigger rectangle by 6.
Solve side a:
21/6 = 3.5
Solve side b:
18/6 = 3
