Diameter of a circle (or sphere)
The segment whose endpoints are points on a circle (or sphere) that contains the center of the circle as its midpoint; the length of that segment.
Half of a sphere.
The area of the lateral surface of a solid.
The surface not included in the base (s).
The union of the surface and the region of space enclosed by a 3-D figure; examples: conic solid, cylindrical solid, rectangular solid.
The study of figures in three-dimensional space.
The set of all possible points; made up of infinite planes.
A sphere is properly defined as the set of points in the space that are equidistant of one point called center. Planes that go through the center of the sphere, intersect GREAT CIRCLES. The circumference of the sphere is the perimeter of any of its great circles.
The boundary of a 3-D figure.
The total area of the surface of a solid.
Unit of measuring volume.
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