If you're referring to an obtuse angle, it is an angle greater than 90 degrees (pi/2 radians).
surface area. S = 4 * pi * R2 This refers to the fluence around the surface
what does empirical mean in geometry
The value of pi in taxicab geometry technically does not exist as any taxicab shape would consist of right angles. A circle does not contain any right angles, therefore circles do not exist in taxicab geometry (so neither does the value pi).However, if you were to place a square around a circle with diameter 1, where each side is a tangent to the circle and then removed the corners of the square repeatedly without ever removing any or the area of the circle (see Figure 1), the value of 'pi' in that case would be 4 (as pi = diameter/circumference (or in this case perimeter)).Figure 1Here the problem arises, as perimeter and circumference are not exactly the same thing. Circumference only pertains to a circle (and circles do not exist in taxicab geometry) whereas perimeter pertains to any geometric shape (whether in taxicab geometry or Euclidean geometry).
geometry means lines, segments, and points!!
If you are meaning it in sense of a geometry, the it's 3 * 180 degrees (which is what they mean by pi) = 540 degrees.
The ratio of the circumference to the diameter of a circle. (3.14159265358979323846264338327950288...)
I think it is
3.14
The value of pi is the circumference of a circle divided by its diameter
If you mean 'pi,' the value of pi necessary for almost all practical mathematics is: 3.14159265 Further than that is only necessary for very delicate geometry and physics.
geometry teacher
If you're referring to an obtuse angle, it is an angle greater than 90 degrees (pi/2 radians).
You cannot find the "PI" of anything Pi is a set numerical value, PI = 3.14159265358979323846… (It goes on forever) But in geometry we consider Pi to equal 3.14
Specifically geometry. Pi is the numerical value of the ratio of the circumference of a circle to its diameter.
3.14159265 That Pi? Many people use Pi. I use Pi in my math class.
surface area. S = 4 * pi * R2 This refers to the fluence around the surface