The formula of a midpoint of AB:

We have:
G(b; 0); F(3b; 2b)
substitute:

Answer: (2b, b)

Take both sides as powers of 4:

Do it again:

That would be 13 feet because each yard is 3 feet so 3x4=12 (feet)
so the correct answer would be 13 feet.
Because it has two equal sides
2x3x2 witch equals 12 so there are 12 different furniture sets