13 feet x 3 feet = 39 square feet.
Total square feet: 169.0 (13 x 13 = 169)
13 feet = 3 962.4 millimetres
19*13 = 247 square feet.
Total square feet: 429.0
3 linear measurements yeild VOLUME not AREA.
13 feet 10 inches is 4.22 meters.
There are 13 feet in 13 feet. The measurement remains the same regardless of how it's expressed. Therefore, 13 feet is simply 13 feet.
13 times 20 = 260 square feet
I am assuming this is a circular pool. The answer is Pi r^2 which comes to 572.5SF
15 feet * 13 feet = 4.572 metres * 3.962 metres = 18.116 sq metres.
13 feet is 3.9624 metres, 17 feet is 5.1816 metres - multiply the two together and you get 20.5316 m2
35divided by3 = 11.666666666666666