For example, if you are starting with mm and you know r in mm, your calculations will result with A in mm 2, V in mm 3 and C in mm. A circle of radius 3.5 or diameter 7 or circumference 21.99 inches has an area of: 2.48258 × 10 -8 square kilometers (km²) 0.0248258 square meters (m²) 248.258 square centimeters (cm²) 24825.8 square millimeters (mm²) 9.58528 × 10 -9 square miles (mi²) 0. The units are in place to give an indication of the order of the results such as ft, ft 2 or ft 3. Units: Note that units are shown for convenience but do not affect the calculations. What is the area of a circle with a DIAMETER of 6 inches (radius of 3 inches) How big is a 6 inch circle. A sphere is a set of points in three dimensional space that are located at an equal distance r (the radius) from a given point (the center point). It will also give the answers for volume, surface area and circumference in terms of PI π. Quest 2023 Exmark Radius zero-turn mower. Multiply these two values: A 5 cm × 6 cm 30 cm. 21-inch mower-without wearing out the machine or its operator. Decide on the rectangle's width for example, b 6 cm. This online calculator will calculate the 3 unknown values of a sphere given any 1 known variable including radius r, surface area A, volume V and circumference C. Rectangle calc: find A (area) As we know the formula for the area of a rectangle A a × b, let's show with an example how you can calculate that property: Choose the length of the rectangle for example, a 5 cm.
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