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horizontal |
A horizontal line goes straight across from side to side.
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vertical |
A vertical line goes straight up and down.
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diagonal |
A diagonal line is slanted.
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parallel |
Parallel lines stay the same distance apart and will never meet.
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perpendicular |
Perpendicular lines cross each other at a right angle (90 degrees).
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intersect |
Lines intersect when they cross over each other.
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angle |
An angle is created where two or more lines meet.
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degrees |
The size of an angle is measured in degrees.
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protractor |
Angles are measured using a protractor.
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acute |
An acute angle is smaller than 90 degrees.
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right |
A right angle measures exactly 90 degrees.
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obtuse |
An obtuse angle is bigger than 90 degrees but less than 180 degrees.
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straight |
Angles on a straight line add up to 180 degrees.
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reflex |
A reflex angle is bigger than 180 degrees but less than 360 degrees.
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full |
A full turn measures 360 degrees.
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* This sentence was added by a Spellzone user.
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