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It is 1/2 of the diameter, and 1/(2 pi) times the circumference,
of the same circle.
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How do you write an equation in standard form of a circle with a center and radius?
The standard equation of a circle, with center in (a,b) and radius r, is: (x-a)2 + (y-b)2 = r2
What is the equation of the unit circle?
For a circle with center at (a,b), and radius r: (x-a)2 + (y-b)2 = r2
What is the algebraic definition of a circle?
(x - a)2 + (y - b)2 = c2The center of the circle is located at the point (a, b).The radius of the circle is 'c' .
How do you Writing the Equation of a Circle in Standard Form?
(x - A)2 + (y - B)2 = R2 The center of the circle is the point (A, B) . The circle's radius is ' R '.
To the nearest hundredth what is the area of a circle with a radius of 4?
B.50.27
How you can find the radius of a circle whose circumference is b?
radius = b/2*pi
Circle A has radius 4 feet circle B has radius 9 feet What is the ratio of the area of circle A to the area of circle B?
Area(A)/ Area(B) = pi*rA2/pi*rB2 = rA2/rB2 = 16/81
If circle A has 4 times the radius of circle B how many times bigger is the area of circle A than circle B?
16
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 do you call the distance around the outside of a circle?
The distance around the outside of a circle is called the Circumference.
Circle A has a radius that is twice the length of circle B What is an accurate statement about the areas of both circles?
Circle A has more area than B
How do you write an equation in standard form of a circle with a center and radius?
The standard equation of a circle, with center in (a,b) and radius r, is: (x-a)2 + (y-b)2 = r2
What is the equation of the unit circle?
For a circle with center at (a,b), and radius r: (x-a)2 + (y-b)2 = r2
How do you write the formula to a circle in the form x?
(x - A)2 + (y - B)2 = C2 (A,B) is the center of the circle. 'C' is the circle's radius.
What is the algebraic definition of a circle?
(x - a)2 + (y - b)2 = c2The center of the circle is located at the point (a, b).The radius of the circle is 'c' .
What equation represents the graph of a circle?
Equation of a circle when its centre is at (0, 0): x^2 + y^2 = radius^2 Equation of a circle when its centre is at (a, b): (x-a)^2 + (y-b)^2 = radius^2
How do you Writing the Equation of a Circle in Standard Form?
(x - A)2 + (y - B)2 = R2 The center of the circle is the point (A, B) . The circle's radius is ' R '.
