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Mrs. Darby's 5th grade students are studying points, lines, and angles. Check out these human geometry figures. |
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Acute Angle
An angle less than
90 degrees. |
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Obtuse Angle
An angle greater than
90 degrees, but less than 180 degrees.
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Ray
A straight path that goes on forever in one direction from
an endpoint. |
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Point
A location in space.
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Lines
A straight path that goes on forever in both directions. |
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Intersecting
Lines
Lines that cross
or meet.
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Perpendicular Lines
Lines that intersect at right angles. |
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Parallel Lines
Lines that never intersect. They are the same distance apart everywhere.
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