Download 6.4 Similar Triangle Proof and Use AA SAS and SSS

 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