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- Steradian - Wikipedia
The steradian (symbol: sr) or square radian[1][2] is the unit of solid angle in the International System of Units (SI) It is used in three-dimensional geometry, and is analogous to the radian, which quantifies planar angles
- Steradian - Math is Fun
A steradian is used to measure solid angles A steradian is related to the surface area of a sphere in the same way a radian is related to the
- Steradian - Simple English Wikipedia, the free encyclopedia
The steradian (symbol: sr) or square radian is the SI unit for solid angle It is defined as the solid angle that, when projected onto a surrounding spherical surface, produces an area (of any shape) equal to the square of the radius of the sphere
- Steradian | Angle, Solid Angle, Radian | Britannica
steradian, unit of solid-angle measure in the International System of Units (SI), defined as the solid angle of a sphere subtended by a portion of the surface whose area is equal to the square of the sphere’s radius
- Steradian - from Wolfram MathWorld
Geometry Trigonometry Spherical Trigonometry Steradian The unit of solid angle The solid angle corresponding to all of space being subtended is steradians
- What Is Steradian Formula? - TimesMojo
steradian, unit of solid-angle measure in the International System of Units (SI), defined as the solid angle of a sphere subtended by a portion of the surface whose area is equal to the square of the sphere’s radius
- Steradian Explained
A steradian can be defined as the solid angle subtended at the centre of a unit sphere by a unit area (of any shape) on its surface For a general sphere of radius, any portion of its surface with area subtends one steradian at its centre
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