Geometry+Archive


 * Help Mrs. Post do her homework by completing this** [|**survey**]

//updated 6/4// =Geometry Study Guide=

Spring 2009 Final Exam
The links provided do go out to another part of the web. The links have video demonstrations as well as practice problems. Check out the answer key to see if you got them right. **//__(Note - to view these websites, right-click on the link and choose Open in New Window so that you keep this window open!)__//** Volume - [|Pyramids & Cones] S.A. - [|Prisms & Cylinders] S.A. - [|Pyramids & Cones] Volume & S.A. - [|Spheres] [|Interactives 3-D Shapes] [|Notes on Volume & S.A. from NY Regents] || More [|areas] Area: [|Rectangles & Parallelograms] Area: [|Triangles & Trapezoids] [|Circles]- circumference & area [|Interactive Formula Sheet] || (including 3,4,5; 6,8,10; 5,12,13; 9,12,15; 8,15,17; 7,24, 25) || [|Intro to Trig] Use trig to [|find unknown angles and sides] (see questions #13-15 and #33-35) [|Pythagorean Theorem] Working with [|Square Roots] || What do we know about: Classifying [|Quads 2] [|Quadrilaterals] ||
 * ~ **Big Ideas** ||~ **Helpful Resources** ||
 * **__Chapter 12 Volume & Surface Area__**
 * Volume, Surface Area of Prisms & Cylinders
 * Volume, Surface Area of Pyramids & Cones
 * Volume, Surface Area of Spheres || Volume - [|Prisms & Cylinders]
 * __**Chapter 11 Areas**__
 * Rectangles
 * Squares
 * Triangles
 * Parallelograms
 * Trapezoids
 * Rhombus
 * Circles - circumference & area || [|Areas]
 * **__Chapter 8 Right Triangles/Trigonometry__**
 * Basic Trig Ratios (sin, cos, tan) to find missing sides
 * Special Triangles (30, 60, 90) and (45, 45, 90)
 * Pythagorean Theorem
 * Pythagorean Triplets
 * __**Chapter 5 Types of Quadrilaterals & Their Relationships**__
 * Quadrilateral
 * Parallelograms
 * Rectangles
 * Rhombus
 * Squares
 * Trapezoids || Recall Concept Map

Geometry Scans for Class Pythagoras Investigation - []

=Geometry= **__Updated 5/4/09__** Help for circles chapter: [] Practice:

Circle O with tangent and Find all of the numbered angles.
 * // Question: //**

Trig Tables: []
 * __Update 4/16/09__**

__**Update - 3/24/09**__ Movies PLUS quiz to help with Proportion & Similar Triangles: [] Explore Similar Triangles: http://argyll.epsb.ca/jreed/math9/strand3/triangle_congruent.htm http://www.analyzemath.com/Geometry/similar_triangle_problems.html http://hotmath.com/util/hm_flash_movie.html?movie=/learning_activities/interactivities/triangleSimilarity.swf&return_to=undefined&title=Scale%20Factors%20and%20 Example Problems PLUS video: http://my.hrw.com/math06_07/nsmedia/homework_help/msm3/msm3_ch05_07_homeworkhelp.html

__**Extra Credit/Enrichment/Honors:**__ **Golden Ratio:** 1) In this activity, you will look for examples of the golden ratio. Recall that the golden ratio is about 1.6. Try to find examples at school, at home or any other location. The ratio does not have to be exactly 1.6 but should be reasonably close. Some examples of places to find the golden ratio are book covers, food boxes, or windows. After finding examples, you should choose your five best examples. List these examples on a sheet of paper. Next to the item, list the measurements and show the golden ratio. 2) Create a poster that explains the golden ratio and describes the examples that your group found. Share the posters with the entire class. Did anyone find the same golden ratio items? 3) Use Mrs. Post's WebQuest to find out even more about the Golden Ratio: []

1) In groups of two or three, measure each other's height in meters. (This activity must be done on a sunny day.) One partner stands near a tall object such as a flagpole or the pole a basketball hoop is attached to. The other partner measures the length in meters of the first partner's shadow and the length of the object's shadow. Working together, write and solve a proportion to determine the height of the object. Repeat the activity, using the other partner's height and a different tall object.
 * Me & My Shadow:**

2) Create a poster or worksheet that shows sketches of the triangles and the proportions used to find the height of the object you used. Use drawings and creativity.



//Note - you may do one or many of the following activities to earn extra points on a quiz or test. You may do a challenge or activity lab INSTEAD of a normal homework assignment. If you choose to do any of the activities on this page, be sure to print out online activities when complete and carefully write out labs or activities. You may type up your work or use colorful, artistic process to complete these assignments. Activities in this unit are due no later than 3/13/09. // 
 * __2/23-3/13__**
 * //Students and Parents please note: the online links do contain links to pages outside of our textbook. Parents should be monitoring where students are going. //** 

__Chapter 6 Topics__
Exterior Angle Theorem Inequalities in One Triangle Inequalities involving Two Triangles (Hinge Theorem & Its Converse - for video and sample questions click [|here]) media type="custom" key="3542854"

media type="custom" key="3356524"

**__Practice/Help __**
- inequalities in triangles [|Flipcard Activity] - Flip through the cards to study Triangles and Inequalities [|Flipcard Activity] - Flip through the cards to study Quadrilaterals

[|Triangle Factory] - Play this game about triangles! [|Shapes in Space] - Play this game about Quadrilaterals!

[|Crossword Puzzle] - Print out and check your answers online - Inequalities in Triangles. [|Crossword Puzzle] - Print out and check your answers online - Quadrilaterals

**__Enrichment/Extra Credit__** Download [|GeoGebra] to do the following **Online Activity**. McDLit - p. 286 **Activity 5.3** Investigating Concurrent Lines //__*Honors Extension **- find out more about the 9-Point Circle and the Euler Line - use Geometry Software to construct an example of both.**__//

Download [|GeoGebra] to do the following Online Activity**. McDLit - p. 294** Activity 5.5 **Side Lengths and Angle Measures

Download [|GeoGebra] to do the following** Online Activity**. McDLit - p. 329** Activity 6.2 **Investigating Parallelograms

Download [|GeoGebra] to do the following** Online Activity**. McDLit - p. 354** Technology Constructions - #63-65 ** McDLit - p. 361** Technology Constructions - #43-45 **

McDit - p. 371** Activity 6.7 **Areas of Quadrilaterals **

McDLit - p. 316-317
 * Honors Project - Balancing Shapes**

http://www.mathpodcast.com/videos/Algebra/BCC07425-9A13-4013-B874-39724551DECD.html
 * Review Geometry Formulas:

//Pages Created by Kathleen L Post// stampinpost@yahoo.com **