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What is the formula for the circumstance of a circle where r represents the radius of a circle and c represents the circumstance of a circle.?
A circle does not have a circumstance. Assuming that you mean circumfernece, the answer is c = 2*pi*r
If circle A has a radius of 3 cm and circle B has a radius of 4 cm and circle C has the same total area as circles A and B combined hoe do you determine the radius of circle C?
The formual for area is: A = πr2 so the area of circle A (assuming π=3.142) is 28.278cm2, and the area of circle B is 50.272cm2.Their combined area of 78.55cm2 is the area of circle C.The formula for radius is: square root of A/π78.55 ÷ 3.142 = 25, the square root of 25 is 5The radius of circle C is 5cmArea of Circle A = π32 = 9πArea of Circle B = π42 = 16πArea of Circle C = 9π + 16π = 25πLet r = radius of Circle C thenπr2 = 25π : r2 = 25 : r = 5.
What is the radius of a circle if given the circumfrence?
Remember the circle eq'n.;- C = 2 pi r By algebraic rearrangement r = C / (2*pi)
If a circle has a diameter of 7 what is the circumference?
The circumference of a 7-inch circle is: 22 (21.98)
If the diameter of the circle is 69mm then what is the circumference of this circle?
To find the circumference of a circle, you can use the formula C = πd, where C is the circumference, π is a constant approximately equal to 3.14159, and d is the diameter of the circle. Given that the diameter of the circle is 69mm, you can substitute this value into the formula: C = π * 69mm ≈ 216.769mm. Therefore, the circumference of the circle is approximately 216.769mm.
