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.

Tags

CCSS.8.G.A.2

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.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

Define translation in geometry.

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a reflection in geometry?

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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.

Tags

CCSS.8.G.A.3

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.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5