Geometry Similar Triangles and Proportions

One corresponding set of sides are ​ (a)  

• AB and DE

• AB and EF

• B and D

• EF and DE

What is the scale factor from triangle ABC to triangle DEF?

• 1/2

• 7/3

• 2

• 10/3

The following triangles are similar.
AC ∼

•  DF

• AB 

•  ED

•  FC

Triangle ABC and triangle WXY are similar figures. Which of the following proportions is true for the figures?

• (1)

• (2)

• (3)

• (4)

Mathematical Equivalence

ON

Side TA and side​ ​ (a)   are corresponding (matching).

• MO

• AR

• TR

• OP

• MP

• TA

Find missing side length of the similar triangles

• 5

• 7

• 9

• 11

What is the scale factor if the triangle on the left is the original?

• 2

• 3/2

• 2/3

• 1/2

State if the triangles in each pair are similar. If so, state how you know they are similar.

• Yes, AA Similarity

• Yes, SSS Similarity

• Yes, SAS Similarity

• Not Similar