Pi over 12 on a radian unit circle is a little more than a quarter of the circle. Radian units are an alternative to degrees.
The circumference of a circle with a diameter of 12 cm is: about 37.7 cm
A circle with a 12 inch diameter has a 6 inch radius.
The circumference of a circle that has a radius of 12 feet is about 75.4 feet.
The area of a circle that has a 12-inch diameter is: 113.1 square inches.
A circle with a diameter of 12 inches has an area of ~113.1 square inches.
pi/12 = (pi/12)/(2pi) = 1/24 of a circle ( = 15 degrees).
Converting radian into degree: 5π/12 radian = {(5π x 180)/(12 x π)}o = 75o So, cos(5π/12) is equivalent to cos75o and cos 75o = 0.92175126972.
1 degree = pi*radian/180 So therefore 15 times pi*radian/180 = pi*radian/12
12/3 = 4 per unit.
The circumference of a circle is NOT 360 degrees. The circumference is the distance around the curve of the circle. This has a measurement unit of length, not degrees. The angular displacement, in going completely around any point is 360 degrees and that follows from the definition of a degree.
Yes, since 7+9 > 12. If you want to construct one, you need a compass (the kind that draws circles, not the one that tells North) and a ruler.Measure off 12 units (centimeters, inches, etc.) Pick a point a and label it A, and draw a circle with 12 unit radius, using point A as the center.Next, set the compass to 7 units, and using the same point A as the center, draw a 7 unit radius circle. Next, pick a point on the edge of the 12 unit circle, and label it B. Set the compass to 9 units, and draw a circle centered at B. Draw a line segment from A to B (this is the 12 unit side). Find where the 9 unit circle intersects the 7 unit circle (there will be 2 points of intersection). Label one of these two points as C. Draw a line segment from B to C; this is the 9 unit side. Draw a line segment from point A to C (this is the 7 unit side). On the related link, there is a JPEG of what this would look like.
The area of a circle is {pi} x radius2. 12 = 1, so: a circle of radius 1 unit has an area of exactly pi units2
A mole is analogous to a dozen in that it represents a specific quantity, like 12. A mile is analogous to a kilogram or a pound as it represents a unit of distance. A fluid ounce is analogous to a milliliter as they both measure volume. A degree is analogous to a radian as they both measure angles.
Multiply 12 by pi (3.14) and voila; you should have a little over 37 or 38 maybe?
Radius of circle: 12/2 = 6 units
The circumference of a circle if the radius is 12 equals about 75.4
first you find the diameter, which is 12, then you multiply by pi, usually rounded to 3.14 and you answer is 37.68 of whatever unit you were measuring.