Answer:
19.8
Step-by-step explanation:
Since 3.3*6 is 19.8.
Add 0.5 to each side so you have fabric for the seams and your new numbers are 3 ft and 4 ft
find the area by multiplying 3*4 and get 12 ft
1 yard = 3 feet
12/3= 4 yards
You would need 4 square yards of fabric
Download photo math and put the problem into it it will solve it