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Gravity
Terms in this set (22)
circumcenter
where all the perpendicular bisectors of a triangle intersect
perpendicular bisector
Bisects a segment and is perpendicular to it.
bisect
to cut exactly in half
centroid
The point of concurrency of the medians of a triangle
median
a line that goes from a vertex to the midpoint of the opposite side
midsegment
A segment connecting the midpoints of 2 sides of a triangle
altitude
a line going from a vertex to the opposite side, making a right angle
angle bisector
a ray that divides an angle into 2 congruent angles
orthocenter
the point of concurrency of the altitudes of a triangle
incenter
the point of concurrency of the angle bisectors of a triangle
perpendicular
2 lines that intersect to form a right angle
parallel
never intersecting
supplementary
two or more angles that add up to 180 degrees
circumscribe
To draw a circle around, touching all vertices
inscribe
To draw a figure within another so that their boundaries touch but do not intersect.
corresponding angles
Angles that have the same position on two different parallel lines cut by a transversal.
alternate interior angles
angles between 2 lines and on opposite sides of a transversal
alternate exterior angles
Angles that lie outside a pair of lines and on opposite sides of a transversal.
same side interior angles
The two angles that are inside (interior) the parallel lines and are on the same side of the transversal Are SUPPLEMENTARY (add up to 180 degrees)
vertical angles
A pair of opposite congruent angles formed by intersecting lines
supplementary angles
Angles that add to 180 degrees.
complementary angles
Two angles whose sum is 90 degrees
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