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