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TermDefinition
Area Area is the total 2D space within a shape's boundary, measured in square units
Center the exact middle point of a shape or geometric figure, acting as a point of reference for its symmetry
Circle A circle is a 2D geometric shape defined as the set of all points in a plane that are at a fixed distance.
Circumference the total distance around the edge of a circle or any curved geometric shape
composite figure a geometric shape formed by combining two or more basic shapes
cone a solid or hollow object which tapers from a circular or roughly circular base to a point.
cylinder a 3D geometric shape with two identical circular bases connected by a curved surface
diameter the straight-line distance across it passing through the center, connecting two points on the circumference.
face a flat surface on a 3D geometric solid, such as the sides of a cube or pyramid
hemisphere A hemisphere is exactly half of a sphere
lateral face any side of a three-dimensional figure (prism, pyramid, cylinder, cone) that is not considered a base
pi the ratio of any circle's circumference to its diameter
prism two parallel, identical bases and parallelogram side faces, or an optical component that refracts light into a spectrum
pyramid 3D solid with a polygonal base and triangular faces that meet at a single top point
radius straight-line distance from the center of a circle or sphere
regular pyramid 3D geometric shape with a regular polygon forming identical isosceles triangle lateral faces.
semicircle a 2D shape representing exactly half of a circle, formed by cutting a circle along its diameter
slant height diagonal distance from the tip of a cone or pyramid to the edge of its base,
sphere a round solid figure, or its surface, with every point on its surface from its center.
surface area the total area of all outer faces of a 3D object, measured in square units
volume 3D space occupied by matter, calculated using cubic units like or liters
Created by: user-2032050
 

 



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