Congruence and Similarity IAB Review

Front

What is congruence in geometry?

Back

Congruence refers to two figures that have the same shape and size. They can be transformed into each other through rotations, translations, or reflections.

Front

What is similarity in geometry?

Back

Similarity refers to two figures that have the same shape but not necessarily the same size. They can be transformed into each other through dilation and other transformations.

Front

Define translation in geometry.

Back

Translation is a transformation that moves every point of a figure the same distance in the same direction.

Front

What is a reflection in geometry?

Back

Reflection is a transformation that flips a figure over a line, creating a mirror image.

Front

Explain rotation in geometry.

Back

Rotation is a transformation that turns a figure around a fixed point, called the center of rotation, by a certain angle.

Front

What is dilation in geometry?

Back

Dilation is a transformation that changes the size of a figure but keeps its shape the same, using a scale factor.

Front

If triangle A is rotated 90 degrees clockwise, what happens to its angles?

Back

The angles remain the same; only the position of the triangle changes.

Front

What is the effect of a reflection across the x-axis on the coordinates of a point (x, y)?

Back

The coordinates change to (x, -y).

Front

How does a translation affect the length of a line segment?

Back

A translation does not change the length of a line segment; it only changes its position.

Front

What is the result of a rotation of 180 degrees about the origin on the point (x, y)?

Back

The coordinates change to (-x, -y).