None. Because 'yars' is a linear measure. You need a 'Cubic' measure.
You gave two dimensions a length and a width. However, you also need to know the depth, in order to give you the volume of concrete needed in 'cubic feet'.
To convert 'cubic feet' to 'cubic yards' divde cubic feet by '27'.
You will need 1.23 cubic yards.
Most will hold 10 cubic yards. Some local codes will force them to run 8 or less because of the weight.
To calculate the volume of concrete needed for a 10' by 10' slab that is 6 inches deep, first convert the depth to feet: 6 inches is 0.5 feet. The volume in cubic feet is then calculated as 10' x 10' x 0.5' = 50 cubic feet. To convert cubic feet to cubic yards, divide by 27 (since there are 27 cubic feet in a cubic yard): 50 ÷ 27 ≈ 1.85 cubic yards of concrete is needed.
Total surface area... 276 square yards.
8 yards square
This area requires 2.5 cubic yards.
You will need 1.23 cubic yards.
10 yards
8 square yards
You'll need 1.23 Cubic Yards.
10 cubic yards for every 1 foot of height.
69
10 cubic yds per load
3.70 yards and you will order 4 yards to have enough. (30 x 10 x 1/3) = 100 cubic feet Divided by 27 = 3.704 cubic yards
1.85 yards (.5 x 10 x 10 ) divided by 27 where .5= the 6 inches converted to feet and 27 is the conversion to cubic yards. Concrete volume is measured in yards, which actually refers to a cubic yard (1 yd x 1 yd x 1 yd).
The area of a cylinder with a radius of 6 yards and a height of 10 yards is 603.19 square yards.
16.05