Domain 3 Flashcards
what is plane gemetry
2d shapes and figures
what is solid geometry
3d shapes and figures
what is the vertex?
the common point where the rays originate from
how can an angle be named?
letter
number
all points
what are adjacent angles?
angles that share a common side and vertex
what is a straight angle?
180*
what are complementary angles?
two angles that create a sum of 90*
what are supplemetary angles?
angles that create a sum of 180*
what is an angle bisector?
the vertex of an angle divides the angles into equal pieces
what are vertical angles?
angles opposite to each other that are always equal
what are the types of lines?
intersecting
parallel
perpendicular
transversal
what happens to the angles when a transversal line comes into a parralel set?
angles in same positions have the same measures
what are the types of triangles?
equalateral
isosceles
scalene
what is the altitude of the triangle?
a sigment going from the vertex to the base to make a 90*
hat is the mediamn of the triangle?
a segment that goes from the vertex of a triangle to the midpoint of the opposite side