Q2 Review #1

Front

The Triangle Sum Theorem states that the sum of all angles in a triangle is ______.

Back

180°

Front

When rotating a figure 90° clockwise or counterclockwise, you need to make sure the x value and the y value of the original points are ______.

Back

switched in order (y, x)

Front

A dilation produces a similar figure. True or False?

Back

True

Front

If the scale factor is greater than one, the new figure will be ______.

Back

an enlargement

Front

In a dilation, what mathematical operation is used with the scale factor?

Back

multiplication

Front

What is the scale factor in a dilation?

Back

The ratio of the length of a side of the image to the length of the corresponding side of the original figure.

Front

What happens to a figure when the scale factor is less than one?

Back

The figure is reduced.

Front

What is the effect of a 180° rotation on a point (x, y)?

Back

The new coordinates will be (-x, -y).

Front

What is the relationship between angles formed by two intersecting lines?

Back

They are vertical angles and are equal.

Front

What is the definition of similar figures?

Back

Figures that have the same shape but may have different sizes.