Yes, it is a right triangle.
Answer: 28 ' = 853.44 cm
The dimensions of a limo bus vary on how many people fit. They tend to range from 28ft long to 28ft long, with an average width of between 95" and 102".
Assuming you mean 28ft x 28ft x 6ft you would need 174 2/9 yards of concrete, assuming no waste.
28 feet is 336 inches.
To find the square feet of a room, you are just finding the area. Area is length times width. So, in a room with dimensions 28 by 28 feet, the square feet is 784.
approximately 4,440 gallons.
20ft x 28ft = 560ft2
10 - 15 minutes
http://www.havuz.org/pool-calculators.htm
To answer your question you also need to give depth.
8yd is greater than 21ft. 8yd is 28ft
To calculate the volume in gallons of a round pool, do the following calculation: diameter x diameter x depth x 5.9 Example: 28ft x 28ft x 4ft x 5.9 = 18,502.4 gallons