# 7.4 Corresponding Parts of Similar Triangles

## Investigation 1- Corresponding Parts of Similar Triangles

## Please read the directions carefully, and follow them exactly.

## Altitudes

Move the slider to your chosen scale factor (not 1). Calculate the ratio of the length of the altitude through point B' to the length of the altitude through point B. How does the ratio of these two lengths compare to the scale factor?

## Medians

Calculate the ratio of the length of the median through point A' to the length of the median through point A. How does the ratio of these two lengths compare to the scale factor?

## Angle Bisectors

Calculate the ratio of the length of the angle bisector through point C' to the length of the angle bisector through point C. How does the ratio of these two lengths compare to the scale factor?

## Investigation 2- Angle Bisectors

## Opposite Side Ratios- Triangle 1

## Opposite Side Ratio- Triangle 1

How does the ratio of sides AB and AC compare to the ratio of BX and CX?

## Opposite Side Ratios- Triangle 2

## Opposite Side Ratio- Triangle 2

How does the ratio of sides AB and AC compare to the ratio of BX and CX?