U3&4 Review- Congruence & Similarity

Front

What is congruence in geometry?

Back

Congruence in geometry means that two figures have the same shape and size. This can be shown through congruency statements such as ∆A ≅ ∆B.

Tags

CCSS.8.G.A.2

Front

What is similarity in geometry?

Back

Similarity in geometry means that two figures have the same shape but not necessarily the same size. This is often shown through proportional sides and equal angles.

Tags

CCSS.HSG.CO.B.6

CCSS.8.G.A.2

Front

How do you determine if two triangles are similar?

Back

Two triangles are similar if their corresponding angles are equal and the lengths of their corresponding sides are proportional.

Tags

CCSS.HSG.SRT.A.2

Front

What is the rule for reflecting a point across the y-axis?

Back

To reflect a point (x, y) across the y-axis, the new coordinates will be (-x, y).

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

Front

What is the rule for reflecting a point across the x-axis?

Back

To reflect a point (x, y) across the x-axis, the new coordinates will be (x, -y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the rule for reflecting a point across the line y = x?

Back

To reflect a point (x, y) across the line y = x, the new coordinates will be (y, x).

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

Front

What is a transformation in geometry?

Back

A transformation in geometry is an operation that moves or changes a shape in some way, including translations, rotations, reflections, and dilations.

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

Front

What is a translation in geometry?

Back

A translation is a type of transformation that slides a figure from one position to another without turning it.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a figure around a fixed point, known as the center of rotation, by a certain angle.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a reflection in geometry?

Back

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

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3