WebFeb 17, 2010 · Since the radius is 5 cm, the diameter is 10 cm, and pi x 10 cm is the answer, or 31.4159 cm. What is the approximate circumference of a circle that has a radius of 10 centimeters? Circumference of the circle is 2*pi*10 = about 63 cm rounded up. WebJul 2, 2009 · Best Answer. Copy. Use the equation for circumference: C = pi * d Plug in 10 inches for "d" => C = 3.14 * 10 inches = 31.4 inches 31.4 inches is the circumference of a dinner plate with a diameter of 10 inches. Key: C = …
Circumference of a Circle - Definition, Formula, Examples, Facts
WebJul 3, 2024 · Pi is the fixed ratio used to calculate the circumference of the circle You can calculate the circumference of any circle if you know either the radius or diameter. The formulas are: C = πd C = 2πr. where d is the diameter of the circle, r is its radius, and π is pi. So if you measure the diameter of a circle to be 8.5 cm, you would have: WebCircumference of circle = π x Diameter of circle. This is typically written as C = πd. This tells us that the circumference of the circle is three “and a bit” times as long as the diameter. We can see this on the graphic below: … dvd flick software free download
Circle Calculator
WebFormula for the circumference (perimeter) of a semicircle using its diameter = (½)πd + d Substitute the value of d, we get; = (½) × (22/7) × 7 + 7 = 11 + 7 = 18 Therefore, the perimeter of the semicircle is 18 cm. Practice Problems Find the circumference and area of a semicircle whose diameter is 21 cm. WebTherefore, the circumference of circle is 18.857 cm. Example 4: Calculate the perimeter of circle in terms of π, whose diameter is 10m. Solution: Given: Diameter = 10m. Hence, radius = diameter/2 = 10/2 = 5 m. We … WebThe diameter is two times the radius, so the equation for the .circumference of a circle using the radius is two times pi times the radius. Solve the equation for the diameter of the circle, d= C/π. In this example, "d = 12 / 3.14." or "The diameter is equal to twelve divided by 3.14." Divide the circumference by pi to get the answer. dustin hoffman agatha christie movie