Standard

CCSS.Math.Content.5.G
Geometry
CCSS.Math.Content.5.G.B
Classify two-dimensional figures into categories based on their properties.
CCSS.Math.Content.5.G.B.3
Understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category. For example, all rectangles have four right angles and squares are rectangles, so all squares have four right angles.
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