No. Radius is half of the diameter.
(radius+radius) times pi
The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.
I am sorry radius was named after george radius who was a scientisit
You already know the radius.
Hypergiants are very rare and they have a ver short lifespan, and thus they are difficult to observe.
Red hypergiants.
We don't actually know that they don't; however, as hypergiants are quite massive, it's hard to detect the slight perturbation a planet would have on one.
Depends on how you want to classify bigger. Mass or diameter. VY Canis Majoris is a red hypergiant and has the largest diameter of any known star. See related questions for both answers
Hypergiants are relatively rare. Only a few stars become hypergiants, and they don't last very long (only a few million years). Probably a few in every major galaxy.
Hypergiants are extremely massive and luminous stars that are among the largest in the universe. They are tens to hundreds of times more massive than the Sun and thousands to millions of times more luminous. Hypergiants have very short life spans compared to smaller stars, often only a few million years, before they explode in a supernova or collapse into a black hole.
Red giants, red supergiants and red hypergiants.
Black Holes can destroy anything in their path. Only when the 'Hypergiant' is within range of the Black Hole.
The largest known stars are the red supergiants or hypergiants. One example, the largest known star, is VY Canis Majoris.
it's the blue hypergiants, like Eta Carinae and R136a1, which are probably the hottest stars in the Universe. These are estimated to be around 40,000 degrees Kelvin.
Basically, all stars that aren't "giants", "supergiants", or "hypergiants" are considered dwarf stars. This means that all stars on the main sequence are dwarfs.
IMPOSSIBLE circumference = 2*pi*radius if circumference = 2*radius: 2*radius=2*pi*radius 2*radius/(2*radius)=2*pi*radius/(2*radius) 1=pi pi= 1 therefore it is impossible to have a circumference that is twice that of the radius