a figure formed by three segments joining three non collinear points. Each of the three points is a vertex of the triangle and the segments are the sides
What is Triangle
100
the amount of openness in an angle
Measure
100
a polygon such that no line containing a side of the polygon contains a point in the interior of the polygon
What is Convex polygon
200
Two lines that intersect to form a right angle
What is Perpendicular lines
200
Coplanar lines that do not intersect
What is Parallel lines
200
A triangle with no sides congruent
What is Scalene triangle
200
a drawing of a geometric figure
What is diagram
200
a statement that can be proved easily by applying the theorem
Each angle of an equiangular triangle has measure 60"
What is Corollary
300
the exterior angle of a triangle
What is remote interior angles
300
non coplanar lines; lines that do not intersect and are not parallel
What is skew lines
300
A triangle with at least 2 sides congruent
What is Isosceles triangle
300
the answer when 2 numbers are added
What is Sum
300
Two angles in corresponding positions relative to the two lines
What is Corresponding angles
400
an angle formed when one side of the triangle is extended
What is Exterior angles
400
a line added to a diagram to help in a proof
What is auxiliary line ( also ray, or segment)
400
a triangle with all sides congruent
What is equilateral triangle
400
a plane figured formed by coplanar segments
What is Polygon
400
in x=the measure of an angle, then 90-x is its what?
What is Complement
500
two angles whose measures have the sum of 90
What is complementary angles
500
a set of many points that form a straight, endless path
What is Line
500
a triangle with 3 acute angles
What is acute triangle
500
a segment in a polygon that joins 2 nonconsecutive verticals
What is Diagonal
500
Points that can all be contained by a single straight line