Embed Size (px)
DESCRIPTION
p always2. sometimes3. sometimes 4.sometimes 5. always 6. sometimes 7.Sometimes 8. sometimes 9. always 10. Sometimes 11. never12. never 13. Sometimes14. always 15.4:5 16.Trapezoid; T’U’//E’N’ k22. 4:5 23. Property 2, more than 2 ratios 24. x=28, y= 24, z= x=8, y= 18, z= x=30, y= 24, z=20√3 27.x=6¼, y=6⅔, z=5 Homework Answers
Citation preview
Chapter 7 Section 4 & 5Monday 4/14/2008
Similar Polygons
Warm Up Monday 4/14/08Core AssessmentYou need a pencil and a calculator only on your desk.
You will have 35 minutes.All work and answers need to be written legibly on notebook paper.
p. 2501.always 2. sometimes 3. sometimes4.sometimes 5. always 6. sometimes7.Sometimes 8. sometimes 9. always10. Sometimes 11. never 12. never13. Sometimes14. always15.4:516.Trapezoid; T’U’//E’N’17.135 18. 45 19. 1220.20 21. 4k 22. 4:523. Property 2, more than 2 ratios24. x=28 , y= 24, z=3625. x=8 , y= 18, z=1226. x=30, y= 24, z=20√327.x=6¼ , y=6⅔, z=5
Hom
ework A
nswers
Working with Similar Triangles
Similarity PostulatesAA Similarity Postulate
If two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar.
2
1
Similarity PostulatesSAS Similarity Postulate
If an angle of one triangle is congruent to an angle of another triangle and the sides including those angles are proportional, then the triangles are similar.
A
ED
C B
AD = 6, AE = 8, DC = 3, EB = 4,
Similarity PostulatesSSS Similarity Postulate
If the sides of two triangles are in proportion, then the triangles are similar.
A
ED
C B
AD = 6, AE = 8, DE = 7DC = 3, EB = 4, CB = 10.5
Class Work p. 264 – 265p. 256 #13
HW Due TuesdayWritten Exercisesp. 257-258 1-13, 16 and p. 266 1-10
