Relier Pairs Matching Column GameVersion en ligne Geometry Activity par Adanna Wright 1 Obtuse Angle 2 Square 3 Perpendicular Line Segments 4 Intersecting Line Segments 5 Right Angle 6 Parallelogram 7 Acute Angle 8 Line Segment 9 Rhombus 10 Straight Angle 11 Quadrilateral 12 Equilateral Triangle 13 Vertex 14 Scalene Triangle 15 Angle Angle that equals 90 degree. An angle of 180°. A quadrilateral having both pairs of opposite sides parallel to each other an equilateral parallelogram having oblique angles the intersection point of two sides of a plane figure a rectangle having all four sides of equal length Less than 90° and more than 0 ° Line segments that cross each other a triangle having three unequal sides and angles two line segments which cross to form 90 degree angles a polygon with four sides one part of a line It is more than 90° and less than 180°. a triangle with all sides equal and all angles equal Figure formed by two rays.