31-45 Math Vocab Flashcards
Two lines that intersect to form right angles
Perpendicular lines
Two lines are _______ if they are coplanar and do not intersect
Parallel
Non-coplanar lines that will not intersect
Skew Lines
Unit of three or more coplanar segments that meet only at end points such that at most two segments meet at one end point and each segment meets exactly 2 others segments
Polygon
Polygon which is equilateral and equaliangular
Regular polygon
Two triangles are congruent if corresponding sides are congruent and corresponding angles are congruent
Congruent triangles
Segment from the vertex of a triangle to the midpoint of the opposite side
Median of a triangle
Segment from the vertex of a triangle perpendicular to the line containing the opposite side
Altitude of a triangle
Quadrilateral with both pairs of opposite sides parallel
Parallelogram
Parallelogram with a right angle
Rectangle
Parallelogram with consecutive sides congruent
Rhombus
All sides congruent and all four right angles
Square
Quadrilateral with exactly one pair of opposite sides parallel
Trapezoid
Comparison of two numbers by division
Ratio
Two angles whose sum is 180°
Supplementary angles
