Unit 2 Catchup Plan

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, some quantity. It is used to determine how much larger or smaller a figure is compared to the original.

Front

If the scale factor is 1/2, what will the image look like?

Back

It will be SMALLER than the original.

Front

How do you calculate the scale factor?

Back

Scale Factor = \frac{new}{old}.

Front

If the side length of AB was 10 and the New A'B' had a side length of 2, what was the scale factor?

Back

\frac{2}{10} = \frac{1}{5}.

Front

If B was at 2 and B' was at 4, what is the scale factor?

Back

2.

Front

What does 'corresponding sides' mean in geometry?

Back

Corresponding sides are sides in two or more geometric figures that are in the same relative position.

Front

What side is CORRESPONDING to side AB if AB corresponds to DE?

Back

DE.

Front

What is the relationship between scale factor and area?

Back

If the scale factor is k, the area of the new figure is k^2 times the area of the original figure.

Front

What happens to the dimensions of a shape if the scale factor is greater than 1?

Back

The dimensions of the shape will increase, making the shape larger.

Front

What happens to the dimensions of a shape if the scale factor is less than 1?

Back

The dimensions of the shape will decrease, making the shape smaller.