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18 Cards in this Set
- Front
- Back
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Protractor
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am instrument used to measure the size of an angle
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Degree
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a unit of measure for angles
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acute angle
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angle measuring less that 90*
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right angle
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angle measuring more that 90*
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obtuse angle
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measures greater than 90* and less than 180*
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straight angle
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measures 180*
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polygon
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a plane closed figure formed by a line segment
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line segment
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a part of a line that has two points
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equallateral triangle
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a triangle with all sides the same length
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isoceles triangle
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a triangle with two side the same length
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right triangle
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triangle with one right angle
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obtuse triangle
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triangle with one angle greater that 90*
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quadrilateral
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a polygon with four sides
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square
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polygon with four equal sides
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rectangle
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opposite sides are parallel and the same length and had four right angles
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parallelagram
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two pairs of parellel sides
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rhombus
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two pairs of parallel sides
all sides are the same length |
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trapezoid
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only one pair of parallel sides
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