Not sure of your question since you already have the values for both equations, so I assume you want to calculate what the diameter is. If this is so, you can use the formula for finding circumference to calculate the diameter:
c = pi*d (next substitute with the given values)
87.92 = 3.014*d (next divide both sides by 3.14 to find the diameter)
28 = d
28 this is the diameter of a circle that has a circumference of 87.92
It is the formula for the circumference C of a circle where D is the diameter. C = (pi) D
Circumference equals pi times diameter; so C = 84*pi or about 263.9.
62.8 inches. the formula for a circle's area is a = pi x r squared. substitute 3.14 for pi and 314 for a. 314 = 3.14 x r squared (divide both sides by 3.14) v 100 = r squared (find the square root of both sides) v r = positive or negative 10 . since it stands for the radius of a circle, it has to be positive. now that you know the circle's radius, you can solve the circumference formula, c = 2 x pi x r. c = 2 x 3.14 x 10 c = 62.8
By definition pi is the ratio between the circumference and the diameter pi=C/D so C=pi*D and C=pi*40=125.6 (if pi=3.14)
Circumference of a circle = 2*pi*radius or pi*diameter
2r(pi)=C where C is circumference. Therefore the radius equals C/2(pi)
the answer is c, pi
No. C = 2*pi*r is the equation representing the circumference of a circle. The area of a circle is equal to pi*(r^2).
C = pi*r82 C = Pi*r*2 90=R Thus 180*Pi
Remember the two circle eq'ns. A = pi r^(2) C = 2 pi r Since we have an area of 314 sq. ins ( NOT ins(2)). Then 314 sq. ins = 3.14 * r^(2) r^(2) = 314 sq. ins / 3.14 r^(2) = 100 sq.ins r = sqrt(100 sq. ins) r = 10 ins. Hence C = 2 * 3.14 * 10 ins. C = 3.14 * 20 ins C = 62.8 ins.
It is the formula for the circumference C of a circle where D is the diameter. C = (pi) D
C=2(pi)(r) therefore if r equals 3.20 then C=20.1061929
C=pi*dcircumference equals pi times diameter.Which means 3.14 (which we will use for pi) times 22 equals 69.08 in.
NO!!!! C = 2 pi r C = pi d In words ; Circumference equals two times 'pi' times radius or , circumference equals 'pi' times diameter. NB The diameter is twice the radius. Also A = pi r^(2) In words, Area equals 'pi' times the radius squared. Read learn and comit to memory these two circle equations.
In that case, C = 31.416So in a circle circumference (C) = pi * diameter. So 3.1416 is an approximation of pi, and the diameter is 10.
Circumference = pi*Diameter So D = C/pi = 9.42/3.14 (using a crude approximation for pi) and that is equal to 3.
Circumference = Pi x Diameter (Pi equals 3.14)