point - a dot, ray - part of a line that has an endpoint and extends on the other side, line - extends on both sides, angle - formed by joining two rays, segment - part of a line that has two endpoints, degree - measurement of an angle, parallel - lines that will never meet, intersecting - lines that cross at a point, perpendicular - lines that form a right angle, obtuse - angles greater than 90o but less than 180o, straight - angles that are exactly 180o, right - angles that are exactly 90o, acute - angles that are less than 90o,

Geometry

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