S1 Unit 3: Remediation

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way to produce a new shape.

Front

What are the types of transformations?

Back

The main types of transformations are translation, rotation, reflection, and dilation.

Front

Define translation in geometry.

Back

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

Front

What does it mean for two figures to be congruent?

Back

Two figures are congruent if they have the same shape and size, but may be in different positions.

Front

What is a dilation in geometry?

Back

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

Front

How do you identify a translation rule?

Back

A translation rule is identified by how much the x and y coordinates change, expressed as (x + a, y + b).

Front

What is the smallest angle of rotation that maps a figure onto itself?

Back

The smallest angle of rotation that maps a figure onto itself is called the angle of rotational symmetry.

Front

What is a reflection in geometry?

Back

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

Front

How do you describe a transformation mathematically?

Back

A transformation can be described using coordinate notation, such as (x, y) -> (x + a, y + b) for translations.

Front

What is the effect of a 180° rotation on a figure?

Back

A 180° rotation turns a figure upside down, mapping each point to its opposite position.