Similar Triangles & Proportionality

Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.

• AA

• SSS

• SAS

• no similar

If two figures are similar, the corresponding sides are ______________. (a)  

• equal
• congruent
• proportional
• none of these

Find the missing length indicated.

Write down your work.

• 30

• 25

• 45

• 50

What if the value of x?

• 16
• 12
• 4
• 64

Find the value of x.

• 15√5

• 5√5

• 5√3

• 3√5

Find the value of x.

• 12

• 4√2

• √32

• 16

Find x.

• 18

• 21

• 11.8

To measure the distance across a pond, a surveyor locates points A, B, C, D, and E as shown.  What is AB to the nearest meter?

• 10
• 12
• 15
• 18