Spheres
Record 1 to 25 of 48
Arcs Drawn on Sphere
Illustration of a sphere with arcs drawn. ...
Area of Sphere
"It is found that the cord covering the curved surface is twice as long as the one covering the flat surface. So the area of the entire curved surface of a sphere is equal to the area of the surface o...
Area of Sphere
"The bases of the pyramids are considered as forming the surface of the sphere, while the altitude of the pyramids is the radius of the sphere." -Foster, 1921...
Circle Made by Plane Passing Through a Sphere
"Every section of a sphere made by a plane is a circle."...
Contours of a half sphere
"The contours of a half sphere are a series of circles, far apart near the center (top) and near together at the outside (bottom), showing that the slope of a hemisphere varies at all points, being ne...
Equal Spheres With Triangles
Illustration of equal spheres with equal triangles....
Equal Spheres With Triangles
Illustration of equal spheres with equilateral and equiangular triangles....
Flanged Spherical Segment
An illustration of a flanged spherical segment with a diameter of 10 inches. Illustration could be used to find the area....
Intersecting Spheres
Illustration of two intersecting spheres. "The intersection of two spherical surfaces is the circumference of a circle whose plane is perpendicular to the line joining the centres of the surfaces and...
Invariable Cone
Possible forms of the invariable cone by means of the intersections with a concentric spherical surface....
Isosceles Spherical Triangle
Illustration of an isosceles spherical triangle....
Isosceles Spherical Triangle
Illustration of an isosceles spherical triangle....
Material Sphere
Illustration of a material sphere that can be used to find its diameter....
Plane Passing Through a Sphere
Illustration of a plane passing through a sphere....
Polar and Spherical Triangles
Illustration of polar and spherical triangles....
Polar Triangles in Sphere
Illustration of polar triangles....
Polyhedral Angle in a Sphere
Illustration of a sphere with a polyhedral angle whose vertex is at the center of the sphere and whose face angles are measured by the sides of the polygon, whose dihedral angles have the same numeric...
Polyhedral Angle in a Sphere
Illustration of a sphere with a polyhedral angle....
Sphere
A sphere is a solid bounded by a uniformly curved surface, every point of which is equally distant from a point within, called the center....
Sphere
"A sphere is a solid bounded by a uniformly curved surface, every point of which is equally distant from a point within, called the center." —Hallock 1905...
Sphere Cut Into Pyramids.
An illustration of a sphere cut into polygons as bases with their vertices at the center of sphere....
Sphere Inscribed in a Cube
Illustration of a sphere inscribed in a cube....
Sphere Inscribed in a Cube
Illustration of a sphere inscribed in a cube....
Sphere Inscribed in Tetrahedron
Illustration of a sphere inscribed in a tetrahedron....
Sphere Inscribed in Tetrahedron
Illustration of a sphere inscribed in a tetrahedron....
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