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square

a quadrilateral with 4 equal sides, and 4 equal angles

angle

formed when 2 rays come together in a single point, (measured in degree

rectangle

a quadrilateral with 4 equal angles and opposite sides of equal length

rhombus

a quadrilateral with 4 sides of equal length

3D shape

a shape with length, width, and thickness

congruent shapes

are the same size and shape

similar shapes

are the same shape but are a different size

line

is straight, continues in both directions

point

an exact position or location

line segment

straight, part of a line, 2 endpoints

ray

part of a line, one endpoint, continues in one direction.

angle

is formed by two rays or line segments that share an endpoint.