A set of shapes could have one or more common properties, and sometimes no common properties.
A class of shapes is defined by the common properties shared by each member of the class. For example: All closed figures with exactly three straight sides form a class of shapes - we call them ‘triangles’.
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Summary: Classifying Shapes
Lesson Summary
A set of shapes could have one or more common properties, and sometimes no common properties.
A class of shapes is defined by the common properties shared by each member of the class. For example: All closed figures with exactly three straight sides form a class of shapes - we call them ‘triangles’.