The formula for the area (A) of a circle is A = π r2 - where r is the radius.
The diameter (d) of a circle is twice the radius.
The area of circle having a diameter of 24 ft is A = π 122 = 144π = 452.39 sq ft (2dp)
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Circumference of circle: 20 × π = 62.832 feet rounded to 3 decimal places
It is 1692 US gallons, approx.
Circumference of a 25 feet circle = pie x diameter x 12 942.477 inch 1 feet = 12 inch so i converted into inch as i am having the other component in inch No of 12 inch long blocks = circumference /12 so total 78 pieces will be required to make a circle of dia 25 feet
unit weight = 10.68 (outer dia. of pipe - thickness of pipe) x thickness of pipe unit will be 'lbs/foot' 1 lbs = 0.45359237 kg and 1 foot = 0.3048 meter or 1 meter = 3.2808 feet
The area is 7.068 units2