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# Unit 4 vocab #1-12

angles in the same plane that have a common vertex and a common side adjacent angles
a figure formed by two rays with a common endpoint called the vertex angle
a side of a polygon base of a polygon
a face of a three dimensional figure by which the figure is measured or classified base of a 3D figure
the distance around a circle circumference
two angles whose measures add to 90 degrees complementary angles
the intersection of a three dimensional figure and a plane cross section
a line segment that passes through the center of a circle and has endpoints on the circle, or the length of that segment diameter
the length, width, or height of a figure dimensions
a flat surface of a polyhedron face
draw a figure within another so that their boundaries touch but do not intersect inscribed
a straight path that has no thickness and extends forever line
a part of a line made of two endpoints and all points between them line segment
lines in a plane that do not intersect parallel
lines that intersect to form right angles perpendicular
the ratio of the circumference of a circle to the length of its diameter PI
a flat surface that has no thickness and extends forever plane
a polyhedron with a polygon base and triangular sides that all meet at a common vertex pyramid
a line segment with one endpoint at the center of a circle and the other endpoint on the circle, or the length of that segment radius
a part of a line that starts at one endpoint and extends forever in one direction ray
a polyhedron whose bases are rectangles and whose other faces are parallelograms right rectangular prism
a pyramid whose base is a regular polygon and whose lateral faces are all congruent right rectangular pyramid
two angles whose measures have a sum of 180 degrees supplementary
a pair of opposite congruent angles formed by intersecting lines vertical
Created by: colorguard101