Does this equation already exist?

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SUMMARY

The discussion centers on the formula for calculating the area of a regular polygon using side length, expressed as (ns2cot(180/n))/4, where n represents the number of sides. Additionally, alternative formulas involving the radius (r) and apothem (a) are presented, such as (na2tan(180/n))/4 and (nr2sin(180/n)cos(180/n))/4. The conversation also touches on the philosophical debate regarding the nature of mathematical discovery, referencing Plato and the concept of theorem existence independent of human recognition. The existence of the formula is confirmed as being documented in the CRC Standard Math Tables, 27th edition.

PREREQUISITES
  • Understanding of regular polygon properties
  • Familiarity with trigonometric functions (cotangent, tangent, sine, cosine)
  • Knowledge of mathematical notation and formulas
  • Basic grasp of mathematical philosophy regarding discovery and theorem existence
NEXT STEPS
  • Research the derivation of the area formula for regular polygons
  • Study Simpson's formulas and their applications in geometry
  • Explore the relationship between cotangent and tangent functions in trigonometry
  • Examine the philosophical implications of mathematical discovery and theorem recognition
USEFUL FOR

Mathematicians, geometry enthusiasts, educators, and students interested in polygon area calculations and the philosophical aspects of mathematical discovery.

newbie7.07
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This is a formula to find the area of a regular polygon with sides of equal length only using the side length.

(ns2cot(180/n))/4

Where n is equal to the number of sides and s is the side length.

Also, knowing radius (r) or apothem (a)

(na2tan(180/n))/4

(nr2sin(180/n)cos(180/n))/4

Has someone found this before?
 
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Yes, I find it on page 122 of my copy of CRC Standard Math tables. (27th ed)
 
No offense, but that's not really an equation you can "discover." It's just a calculation.
 
Manchot said:
No offense, but that's not really an equation you can "discover." It's just a calculation.

In mathematics there is no such thing as discovery.
 
Ah.. I see you folks have never read Plato. Or won't admit to it anyway.
 
Werg22 said:
In mathematics there is no such thing as discovery.
Yes, there is. Just because a certain theorem happens to be true whether it's been found or not, it doesn't mean that it can't be discovered. "Discover" in this case simply means that you are the first human being to stumble upon it.
 
Ok, then can anyone who's read something about this explain why cot(180/n)=tan(90(n-2)/n)?
 
newbie7.07 said:
Ok, then can anyone who's read something about this explain why cot(180/n)=tan(90(n-2)/n)?

Just apply Simpson's formulas.
 

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