Geometry Similarity of Triangles

Determine whether the triangles are similar or not. If so, state how they are similar.

• Yes, by AA Similarity

• Yes, by SAS Similarity

• Yes, by SSS Similarity

• No, not similar

Name the postulate, if possible, that makes the triangles congruent.

• SAS

• ASA

• AAS

• Not Possible

Which statement would justify ∆ABC~∆DEF?

• Angle-Angle (AA) Similarity

• Side-Angle-Side (SAS) Similarity

• Side-Side-Side (SSS) Similarity

• It is not possible to determine if ∆ABC~∆DEF.

Which statement would justify ∆ABC~∆DEF?

• Angle-Angle (AA) Similarity

• Side-Angle-Side (SAS) Similarity

• Side-Side-Side (SSS) Similarity

• It is not possible to determine if ∆ABC~∆DEF.

Find the value of x.

Type the value only, not x =

Mathematical Equivalence

ON

• are

• SAS Similarity Theorem

• are not

• SSS Similarity Theorem

Tags

G.SRT.5

Which statement would justify ∆ABC~∆DEF? 

• Angle-Angle (AA) Similarity

• Side-Angle-Side (SAS) Similarity

• Side-Side-Side (SSS) Similarity

• It is not possible to determine if ∆ABC~∆DEF.

∆ABF~∆ACE. What is the length of CB?

• 7.2 units

• 4.05 units

• 20 units

• There is not enough information to determine the length of CB.

∆ABD~∆ECD. What is the length of CD?

• 90 units

• 7.5 units

• 22.5 units

• There is not enough information to determine the length of CD.

Which statement is NOT true about similar triangles?

• The angles of similar triangles are always congruent.

• The sides of similar triangles are proportional.

• One congruent angle measure indicates similarity.

• Similar triangles can have shared parts.