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# unit 4

A part of a line with one endpoint and extends forever ray
a figure formed from to lines or rays together. angle
a straight path that goes on forever in both directions line
lines, line segments, rays are perpendicular if they form right angles perpendicular
the same distant apart at every point parallel
lines that are not parallel or perpendicular obligue
to cut or divide by passing through or across intersect
a tool that measures angles protractor
a unit for measuring angles degree
a ninety degree angle right angle
a 180 degree angle straight angle
angles having a sum of 180 degrees supplementary angles
angles having a sum of 90 degrees complimentary angles
when 2 lines intersect they form these opposite angle
pairs of opposite formed by intersecting lines are called these vertical angle
a closed shape with no curved sides polygon
the exact same shape and size congruent
a triangle with 2 congruent sides isosceles triangle
a triangle with the exact same sides equilateral triangle
a triangle with all different sides scalene triangle
a triangle with three acute angles acute triangle
a triangle with one right angle right triangle
a triangle with one obtuse angle obtuse triangle
trapezoid with at least right trapezoid
a plane figure that forms a closed path so that every spot is the same distance from the center circle
reflex angle a angle greater than 180 degrees
Created by: 100252301