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Mod 12 Vocab

QuestionAnswer
area the measure of the total two-dimensional space, surface, or region enclosed within a set of boundaries
center he exact middle point or centroid of a figure, shape, or object that is equidistant from all points on its boundary or vertices
circle a 2D geometric shape consisting of all points in a plane that are equidistant (an equal distance) from a fixed center point
circumference the total distance around the edge of a circle or any curved geometric shape
composite figure a 2D geometric figure made by combining two or more basic shapes, such as rectangles, triangles, circles, or trapezoids
composite solid a 3D figure formed by combining two or more basic geometric solids
cone a 3D geometric shape that tapers smoothly from a flat, usually circular, base to a single point called the apex or vertex
cylinder a three-dimensional solid shape featuring two parallel, identical, and congruent circular bases connected by a curved surface
diameter the longest straight line passing through the center of a circle or sphere, connecting two points on its circumference
face a flat or curved surface that makes up one of the sides of a 3D solid figure
hemisphere a three-dimensional geometric shape representing exactly half of a sphere, created when a sphere is cut through its center along a diameter
lateral face any flat side of a three-dimensional solid (polyhedron) that is not considered a base
pi a mathematical constant representing the ratio of a circle's circumference to its diameter, roughly equal to
prism a 3D solid figure with two identical, parallel bases (top and bottom) connected by flat, rectangular (or parallelogram) sides
pyramid a 3D solid figure with a polygon base and triangular side faces that meet at a single point, called the apex
radius a line segment connecting the center of a circle or sphere to any point on its boundary (circumference)
regular pyramid a 3D geometric solid with a regular polygon base (all sides/angles equal) and a vertex (apex) centered directly above the base, forming a right pyramid
semicircle a 2D geometric shape representing exactly half of a circle, formed by cutting a circle along its diameter
slant height the diagonal distance measured along the lateral surface of a cone or pyramid, extending from the apex (top) down to the edge of the base
sphere the set of all points in 3D space that are equidistant from a fixed center point
surface area the total measurement of the exposed outer surface of a three-dimensional object, calculated as the sum of the areas of all its faces
volume the measure of the3D space an object occupies
Created by: user-1982816
 

 



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