Answer:
AB = 22 cm
Step-by-step explanation:
Find PQ by subtracting from perimeter.
12 x 2 = 24
30 - 24 = 6
There are two sides left so divide by 2.
6 / 2 = 3
PQ = 3 = BC
Divide the area by the side length to get the other side length.
66 / 3 = 22
AB = 22 cm
