Unit 4 Review - Similar Triangles

These flashcards cover key concepts related to similar triangles, including scale factors and side length calculations.

What is the scale factor to transform Triangle RST into Triangle ABC if the lengths of the sides are given as 5, 4, and 9 for RST and 29, 18, and 15 for ABC?

The scale factor is calculated by comparing corresponding sides, e.g., using 5 to 29 results in a scale factor of 29/5.

What is the scale factor to transform Triangle ABC into Triangle RST?

The scale factor is the reciprocal of the previous scale factor.

If the lengths of sides in Triangle DF are 15, 20, and 10, what information do you need to determine the length of DF?

You need a corresponding side length from a related triangle to establish a scale ratio.

What does it mean for triangles ABC and RST to be similar?

It means they have the same shape but not necessarily the same size, and their corresponding angles are equal.