Acute Angle - An angle that is less than 90 degrees. , Line - A straight path that never ends. , Obtuse Triangle - Triangle with one obtuse angle. , Acute Triangle - Triangle with three acute angles. , Line Segments - Parts of lines. , Parallel Lines - Lines that never intersect and are the same distance apart. , Intersecting Lines - Lines that cross each other. , Obtuse Angle - An angle that is more than 90 degrees. , Parallelogram - Quadrilateral with two pairs of parallel sides. , Perpendicular Lines - Two lines that intersect to form right angles. , Rectangle - Quadrilateral with two pairs of parallel sides and four right angles. , Right Triangle - Triangle with one right angle and two acute angles. , Point - An exact location in space. , Rhombus - Quadrilateral with all four sides equal length AND two acute angles & two obtuse angles. , Square - A quadrilateral with all four sides equal length AND four right angles. , Ray - A path that has a starting point but no end. , Right Angle - An angle that is exactly 90 degrees. , Angle - Two rays meeting at a common endpoint. ,

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