1 / 13

Geometry

Today: Check Up 8.5 Instruction Practice. Geometry. I've got a theory that if you give 100 percent all of the time, somehow things will work out in the end. Larry Bird. Yesterday. Assignment: 8.4 p483 #12-20, 45-47, 53.

tawana
Télécharger la présentation

Geometry

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Today: Check Up 8.5 Instruction Practice Geometry I've got a theory that if you give 100 percent all of the time, somehow things will work out in the end. Larry Bird

  2. Yesterday • Assignment: • 8.4 p483 #12-20, 45-47, 53 I've got a theory that if you give 100 percent all of the time, somehow things will work out in the end. Larry Bird

  3. Homework Quiz Take out your piece of notebook paper labeled CHAPTER 8 HOMEWORK QUIZ. Write down the date (1/16), then write out p 483 #19 (INCLUDING PICTURE!!!), your work and your answer.

  4. 8.5 Proving Triangles are Similar Objectives: • Prove triangles similar by SSS Similarity Theorem • Prove triangles similar by SAS Similarity Theorem • Use similar triangles in real life Vocabulary: SSS~, SAS~

  5. Side-Side-Side (SSS) Similarity Theorem A P Q R B C If the corresponding sides of two triangles are proportional, then the triangles are similar. , then ABC ~ PQR If

  6. Are the triangles similar? M A 25 20 8 10 O 24 N C B 30 What is the similarity statement? What is the scale factor?

  7. If an angle of one triangle is congruent to an angle of a second triangle, and the lengths of the sides including these angles are proportional, then the triangles are similar. X M N P Y Z Side-Angle-Side (SAS) Similarity Theorem

  8. If AC = 6, AD = 10, BC = 9, CE = 6, is DACB ~ DDCE? A E C D B What is the scale factor?

  9. Given: DXYZ: XY = 5, YZ = 4, mÐZ = 50° DUVW: UV = 10, VW = 8, mÐW = 50° Are these triangles similar? If yes, what is the scale factor? If yes, what is the similarity statement?

  10. You are mounting a projector to the ceiling. If a projected image is 1.5’ tall from 5’ away, how far should mount it if you want a 10’ tall projection?

  11. A museum worker is attempting to check the dinosaur’s eyes. Unfortunately, the snout is too wide and he can not get a clear view. To get a better look, he places a mirror on the ground and uses the reflections. If the worker’s eyes are 5.5’ high and the mirror is 12’’ from the man and 2’ from the dinosaur, what is the height of the dinosaur?

  12. To find the distance across a lake you form two isosceles triangles. What is the length of the lake? 180’ 120’ 90’

  13. Assignment: 8.5 p 492 #9-14, 29 Geometry I've got a theory that if you give 100 percent all of the time, somehow things will work out in the end. Larry Bird

More Related