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4th Grade Geometry Terms
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Terms in this set (15)
Obtuse angle
An angle that measures more than 90 degrees but less than 180 degrees
Acute angle
An angle that measures less than 90 degrees but more than 0 degrees
Perpendicular
Lines that form square corners and 90 degree angles
Right angle
An angle that measures exactly 90 degrees
Parallel
Lines that are equal distance apart and will never intersect
Straight angle
An angle that measures exactly 180 degrees
Quadrilateral
A 4 sided polygon
Point
Names an exact location
Line segment
Part of a line with 2 endpoints
Ray
A straight path that begins at a point and goes on forever in only one direction
Intersecting
Lines pass through the same point
Polygon
A closed figure made of line segments
Right triangle
A triangle with one right angle
Acute triangle
A triangle with three acute angles
Obtuse triangle
A triangle with one obtuse angle
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