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# Similar Triangles II - PowerPoint PPT Presentation

Similar Triangles II. Prepared by Title V Staff: Daniel Judge, Instructor Ken Saita, Program Specialist East Los Angeles College. Click one of the buttons below or press the enter key. BACK. NEXT. EXIT. © 2002 East Los Angeles College. All rights reserved.

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### Similar Triangles II

Prepared by Title V Staff:Daniel Judge, InstructorKen Saita, Program SpecialistEast Los Angeles College

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Mathematicians have been able to show that two triangles, under certain conditions, are similar. Consider the following. . .

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If two pairs of corresponding angles are congruent under certain conditions, are similar. Consider the following. . .

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If two vertical angles and a pair of corresponding sides opposite the angles are parallel ( ), then are similar.

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The following situations have to do with using transversals to create similar triangles.

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A to create similar triangles.

X

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Now,choose a point B on and a point Y on . to create similar triangles.

B

Y

A

X

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Choose point C and Z on . Draw a line from B to C and a line through Y that is parallel to .

B

Y

A

C

X

Z

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Q: Are the following triangles similar if line through Y that is parallel to .

Answer-- Yes, don’t discriminate against right triangles!

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Consider another transversal, line through Y that is parallel to .

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Now, line through Y that is parallel to .

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Q: Are and similar? line through Y that is parallel to .

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Answer line through Y that is parallel to . --Yes, don’t discriminate against right triangles!

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End of Similar Triangles II line through Y that is parallel to . Title V East Los Angeles College1301 Avenida Cesar ChavezMonterey Park, CA 91754Phone: (323) 265-8784Email Us At:[email protected] Website:http://www.matematicamente.org

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