What is the equation for the Schwarzschild Radius and why is π not included?

AI Thread Summary
The Schwarzschild Radius equation defines the radius of a black hole's event horizon and is given by the formula Rs = 2GM/c², where G is the gravitational constant, M is the mass of the black hole, and c is the speed of light. The absence of π in this equation is due to its specific derivation from general relativity, which focuses on gravitational effects rather than geometric properties. While black holes are spherical, the equation's context does not require π, as it relates to the event horizon rather than surface measurements. The discussion highlights the distinction between geometric concepts and the physics governing black holes. Understanding this equation is crucial for grasping the nature of black holes in astrophysics.
carcosachild
Hello :)
I had a question , i recently red a lot about black holes and i had a question about the Schwarzschild
Radius . How does that come that π is not in the equation ? The black hole is a sphere so instinctly one could think that Pi should be in the equations.. ?
P.S: I'm french and 16 so sorry for the eventuals faults :)
 
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In geometry, you start with radius r. π comes into get circumference, area, volume, etc.
 

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