point
describes a position in space
line
a set of collinear points that continue indefinitely in opposite directions and has no thickness
plane
2 dimensional, flat surface with length and width
ray
part of a line with one endpoint and continues indefinitely in one direction
segment
part of a line with two endpoints
solid
three dimensional figure with length, width and height
triangle
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obtuse triangle
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acute triangle
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right triangle
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isosceles triangle
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scalene triangle
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equilateral triangle
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