A square has four lines of symmetry. The diagonals of a square coincide with two of the lines of symmetry that can be drawn.
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The student will determine congruence of segments, angles, and polygons.
A regular polygon has congruent sides and congruent interior angles.
Given two congruent figures, what inferences can be drawn about how the figures are related? The congruent figures will have exactly the same size and shape.
Given two congruent polygons, what inferences can be drawn about how the polygons are related? Corresponding angles of congruent polygons will have the same measure. Corresponding sides of congruent polygons will have the same measure.
Characterize polygons as congruent and noncongruent according to the measures of their sides and angles.