Are square feet and square yards similar?

Answer 1

They are both an Imperial measure of area.

Linearly

3 feet = 1 yard/

Areally

3 ft X 3 ft = 1 td X 1 td

9 sq.ft = 1 sq.yd.

Volumetriacally.

3 ft x 3 ft x 3 ft = 1 yd x 1 yd x 1 yd

27 cu.ft. = 1 cu.yd.

Answer 2

The only similarity is that they are measures of area in a system of units which are obsolete in most countries.