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DO NOW – Geometry Regents Lomac 2014-2015 Date (DN) ON THE BACK OF THIS PACKET Sketch an example for each triangle similarity shortcut. (1) calculator . due . Similar Triangles Proof and Use 6.4 Name _______________________________Per______ LO: I can show that triangles are similar using the AA, SSS, and SAS similarity shortcuts and use them to find unknown sides and angles. Similarity: Proof (a) Use AA, SSS, and SAS shortcuts from lesson 6.2 to complete this problem. 6.4 (2) calculator Similarity: Using AA~, SAS~, and SSS~ 6.4 (3) highlighters & calculators Similarity: Using similar triangles to find unknown measures. (a) (b) 6.4 (4) Exit Ticket compass, straightedg e The Exit Ticket is on the last page of this packet. Do it, tear it off and turn it in. (5) Homework: compass, straightedg e (1) Given: DT ≅ RT ,DA ≅ RA Prove: ∠D ≅ ∠R (Hint: draw an auxiliary line to create triangles to prove congruent first.) 6.4 (5) Homework: compass, straightedg e (1) Exit Ticket Name________________________________ Date ___________ Per______ Given the diagram to the right with DE P KL show that the triangles are similar. Then find the measures of FE and FL 6.4 DO NOW Name________________________________ Date ___________ Per______ (DN) Sketch an example for each triangle similarity shortcut. 6.4