Level 370
Level 372

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Congruent

A plane figure with the same size and shape.

Complementary Angles

The sum of the measure of two angles is 90 degrees.

Supplementary Angles

The sum of the measure of two angles is 180 degrees.

reflection

It is a transformation that flips a figure over a line of reflection.

rotation

It is a transformation that turns a figure about a fixed point.

Dilation

a transformation that changes the size of an object, but not the shape

translation

It is a transformation that moves points the distance and in the same direction.

e

horizontal line symmetry

a

vertical line symmetry

H

horizontal line and symmetrical line symmetry

Z, %

point symmetry