point - A location, Parallel Lines - Two or more lines that lie in the same plane and never intersect each other, Intersecting Lines - two or more lines that cross or meet at a common point, Perpendicular Lines - Two distinct lines intersecting each other at 90 degrees, Line Segment - a part of a straight line that is bounded by two distinct endpoints, Ray - a line that starts at one point and continues forever in only one direction, Right Angle - an angle that measures exactly 90 degrees, Accute Angle - an angle that measures less than 90 degrees, Obtuse Angle - an angle that measure more than 90 degrees, Adjacent angle - two angles that share a common vertex (meeting point) and a common side, Straight Angle - an angle of 180°, Measure - finding out how big or much something is, Protractor - a simple measuring instrument that is used to measure angles, Vertex - a point where two or more lines meet, like the corner of a shape, where the sides come togethe, Right triangle - a triangle in which one of the angles is 90°, Two-dimensional - a flat shape that only has two measurements: length and width, with no depth or thickness, End Points - a point that marks the end of a line segment, essentially where a line starts or stops, Right trapezoid - a trapezoid that has two right angles next to each other, trapezoid - a four-sided shape where only one pair of opposite sides are parallel to each other, Acute triangle - a triangle where all three angles are smaller than 90 degrees, Obtuse triangle - a triangle that has one angle that is bigger than 90 degrees, Rhombus - a flat shape with four equal sides, where opposite sides are parallel to each other, and opposite angles are also equal, parallelogram - a shape with four sides where the opposite sides are parallel to each other, meaning they will never cross, and are also equal in length, hexagon - a shape with six sides and six corners, quadrilateral - Any shape with 4 sides and 4 corners, Line - a straight path that goes on forever in both directions,

Geometry

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