Review of Four Transformations -Math 8

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a figure around a fixed point, called the center of rotation, by a certain angle in a specified direction.

Front

How many degrees are in a full rotation?

Back

360 degrees.

Front

What does it mean to dilate a figure?

Back

To dilate a figure means to resize it proportionally, either enlarging or reducing it, while keeping the shape the same.

Front

What is a scale factor in dilation?

Back

A scale factor is a number that describes how much a figure is enlarged or reduced during dilation.

Front

If a triangle is dilated by a scale factor of 1/2, what happens to its size?

Back

The triangle's size is reduced to half of its original size.

Front

What are congruent figures?

Back

Congruent figures are shapes that are the same size and shape, meaning they can be superimposed on each other.

Front

What are similar figures?

Back

Similar figures are shapes that have the same shape but different sizes; their corresponding angles are equal and their sides are proportional.

Front

What is a translation in geometry?

Back

A translation is a transformation that moves a figure from one location to another without changing its shape, size, or orientation.

Front

How do you describe a translation?

Back

A translation can be described by how far and in which direction the figure moves, such as '5 units right and 2 units down'.

Front

What happens to angle measures during dilation?

Back

The angle measures remain the same during dilation.