If we know the circumference of a circle, can we find its diameter and its area? Let us find out. We know that diameter of a circle is twice its radius. This means that if “ r “ is the radius of the circle and “ d “ is the diameter of the circle, then, d = 2 r Also,...
1. Know the Formula for the Volume of a Cylinder The formula for the volume of a cylinder contains three elements: the radius of the cylinder (r), the height (h) of the cylinder, and the ratio of the circumference of a circle to its diameterpi. To find the volume of a cylinder, y...
find the diameter of the sphere whose total surface area is 14519.36 cm 2 . (use 𝜋 = 3.14) solution: let r be the radius of the sphere. the total surface area of the sphere = 4𝜋r 2 = 14519.36 cm 2 ⇒ r 2 = (14519.36)/( 4 × 3.14) = 1156 ⇒ r = √1156 = 34 ...
The volume of the cylinder is 785,000 cubic inches. Therefore the total cost of water that the tank can hold is \( \frac{785000}{1000} ~= ~785 \) Therefore the total cost of one tank of water is$785. Example 4:The height and diameter of an oxygen cylinder are 20 inches and 100...
Diameter: The distance from one edge of a circle to another edge going through the center. Circumference: The distance around a circle; the perimeter of a circle. Math Made Easy! Tip If you have trouble remembering geometry terms, it helps to think of other words from the same root with ...
The diameter is the simplest measurement for finding the circumference of a circle, and it requires the fewest steps. Start with the formula C = πd (circumference = 3.14 x diameter). If you enter π (pi) into your calculator, you will get the longer, more accurate value for pi. But ...
The volume of a cylinder of radius r and height h is V = πr^2h. Learn the formulas for the volumes of different types of cylinders along with a few solved examples.
To find the area of a circle, you take pi times the radius squared, or A = pi r^2. Using this formula, you can find the area of a circle if you know the radius -- or the diameter -- by plugging in your values and solving for A. Pi is approximated as 3.
The diagonal of a square is formed by connecting the opposite corners with a straight line. Knowing the length of the diagonal will help you find dimensions of the two right triangles formed within the square. While you can measure a diagonal with a rule
The elapsed-time and run-length calculator is very practical for those in everyday production. Depending on the spool type, you can read the spool weight and elapsed run-times at different speeds. In addition, information is displayed on the respective wire diameter and the running length of ...