The ratio of the circumference of a circle with radius 4 cm to its area is 1:2.
It is: 2 to 3 respectively
Circumference = Pi X Diameter = 3.1415 X 4cm = 12.566cm
The answer depends on what the ratio is relative to!The ratio of a circumference to the area of a circle is half the radius.
The ratio of their heights is 9:4
The circumference of a circle with a radius of 4cm is: 25.13 cm (r x 2 x pi)
A circumference of 12.57 cm
The ratio is: 7cm to 1cm
circumference of the circle = 4*pi cm
Circumference of a circle = 2*pi*radius or diameter*pi
C = 12.6 cm
Circumference of a circle is C=2pir C=2pi(4) C=8pi C=25.12 cm Where pi is the ratio of the circumference to the diameter of any circle, approximately 3.14. There is usually a button for pi on scientific/graphing calculators.
The formula for the circumference of a circle is C = πd, π = 3.142, d = 4cm C = 3.142 x 4cm C = 12.568cm