Transformations Flashcardizz

Front

What is a transformation in geometry?

Back

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

Front

What are the four main types of transformations?

Back

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

Front

Define translation in geometry.

Back

Translation is a transformation that slides a figure from one position to another without turning it.

Front

What is rotation in geometry?

Back

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

Front

What does reflection mean in geometry?

Back

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

Front

What is 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?

Back

A translation can be identified by the movement of a figure in a straight line, maintaining its orientation and size.

Front

What is the effect of a 90° clockwise rotation on a point (x, y)?

Back

The new coordinates after a 90° clockwise rotation are (y, -x).

Front

What happens to a shape during a reflection across the y-axis?

Back

During a reflection across the y-axis, the x-coordinates of the points of the shape change sign, resulting in (-x, y).

Front

How do you perform a dilation with a scale factor of 2?

Back

To perform a dilation with a scale factor of 2, multiply the coordinates of each point of the figure by 2.