Mils of a 1 inch wire: mils = 1000 (1 in) = 1000 The formula for calculating the area of … So, the circumference is about 31.5 feet around. Find the radius, circumference, and area of a circle if its diameter is equal to 10 feet in length. The distance from one side of the circle to the other, going through the center of the circle, is the diameter. To determine the area of a circle from its diameter, divide the diameter by two, square it and multiply by π. If the diameter (d) is equal to 10, you write this value as d = 10. Flow= 27 cubic ft. l. Square or Rectangle Area l= d. Length x Width 2= ft (square feet) e. Length x width x height = ft. 3 (cubic feet) f. Cubic Area =.785 x Diameter2 or . d = diameter of cable or wire (inches) Example - Calculating Mil. ø = Circle diameter; A = Circle area; π = Pi = 3.14159… Area of Circle. The diameter of a circle is the straight line passing through the center of the circle. Directions: Use the calculator above to calculate your square inches. 1 square yd. A = Circle area; π = Pi = 3.14159… ø = Circle diameter; Diameter of Circle. How to find the diagonal of a square - formula. Diameter to Circumference Calculator. Circumference or perimeter of a circle is defined as the distance around it. The formula used to calculate circle area is: A = π x (ø/ 2) 2. *Square Inches is also known as (a.k.a) square inch, square in, SqIn, Sq.In., sq.in., in2 & in 2 **This Calculator also calculates square feet, total height in feet, total height in inches, total length in feet and total length in inches. This is the radius. It is also called as the longest chord of the circle. Formula. Diameter of Circle. For any circle, if you divide the circumference by the diameter you get pi, an irregular number usually rounded to 3.14. = 9 square ft. c. 1 cubic yd. This tool will calculate the area of a circle from the diameter, and will convert different measurement units for diameter and area. Divide the area (in square units) by Pi (approximately 3.14159). b. A circular mil is the equivalent area of a circle whose diameter is 0.001 (10-3) inch, or approximately 0.7854 millionths of a square inch. The constant pi, designated by the Greek letter π, is the ratio of the circumference to the diameter of a circle. A sphere's surface area can be calculated just by knowing its diameter, or radius (diameter = 2 x radius). Now double the radius to get the diameter … The formula used to calculate the circle diameter is: ø = 2 x √(A / π) Symbols. Mils of circular wire or cable can be calculated as: mils = 1000 d (1) where. So, for example, if the square side is equal to 5 in, then the diagonal is 5√2 in ≈ 7.071 in. 1. d = a√2. π is, of course, the well-known mathematical constant, about equal to 3.14159. For an example, we have an area of 303,000 square meters. CONVERSIONS & FORMULAS . Conversion Table. a. The radius is half the diameter, so the radius is 5 feet, or r = 5. Task: Convert 7,500 square millimeters to square inches (show work) Formula: mm 2 ÷ 645.16 = in 2 Calculations: 7,500 mm 2 ÷ 645.16 = 11.62502325 in 2 Result: 7,500 mm 2 is equal to 11.62502325 in 2. To calculate the diagonal of a square, multiply the length of the side by the square root of 2:. 1 square ft. = 144 square inches . This is the diameter of a circle that corresponds to the specified area. The diagonal of a square is the line stretching from one corner of the square to the opposite corner. You can find the circumference by using the formula. Enter the area contained within a circle. To find the diagonal of a square, you can use the formula =, where equals one side length of the square. 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