Proportional Sides of Similar Triangles

If two figures are similar, the corresponding sides are ______________.

• equal

• congruent

• proportional

• none of these

Sides in similar figures must be proportional.  

• True

• False 

Mrs. Ashley used similar triangles to make a design.  Which statement about the triangles in the design must be true?

• They are the same size and shape.

• They are the same size but different shapes.

• They have corresponding angles that are congruent.

• They have corresponding sides that are congruent.

Find side length X.

• 30

• 25

• 15

• 40

What side corresponds with BC?

• FD

• ED

• EC

• CB

• a

• b

• c

• d

• A
• B
• C
• D

Look for the pattern! The sides should match up in the proportion.

• a

• b

• c

• d

• a

• b

• c

• d

Triangle ABC can be taken to a triangle A'B'C' using rigid motions and a dilation. Select ALL the equations that are true.