View by Category

Loading...

PPT – Lesson 32: Median, Angle Bisector, Altitude and Perpendicular Bisector PowerPoint presentation | free to view - id: 278498-ZDc1Z

The Adobe Flash plugin is needed to view this content

About This Presentation

Write a Comment

User Comments (0)

Transcript and Presenter's Notes

Lesson 32 Median, Angle Bisector, Altitude and

Perpendicular Bisector

- Nov. 13, 2009

Homework

- Geometry, P156-158, 7-17, 19, 23

Do Now

- Suppose that you and Pat are partners in a game

in which you must locate various clues to win.

You are told to pick up your next clue at a point

that - is as far from the fountain as from the oak tree
- and
- is 10 m from the flag pole.
- Q Can you find a point that meets both

requirements 1 and 2?

Question

- What kinds of segments can you draw from a vertex

to the opposite side in a triangle?

Vocabulary

- Median of a triangle a segment from a vertex to

the midpoint of the opposite side. - Altitude of a triangle the perpendicular segment

from a vertex to the line that contains the

opposite side. (Q Is it important to mention the

line that contains the opposite side?)

Questions

- What kind of triangle has one angle bisector that

is also altitude and median? - What kind of triangle has three angle bisectors

that are also altitudes and medians?

Vocabulary

- Perpendicular bisector of a segment a line (or

ray or segment) that is perpendicular to the

segment at its midpoint. (Q Does perpendicular

bisector only exist in a triangle?)

Equidistance Theorems of Perpendicular Bisectors

- Theorem 4-5 If a point lies on the perpendicular

bisector of a segment, then the point is

equidistant from the endpoints of the segment. - Theorem 4-6 If a point is equidistant from the

endpoints of a segment, then the point lies on

the perpendicular bisector of the segment. - Q Can you combine both theorems into one

biconditional statement?

Example

- Given S is equidistant from E and D V is

equidistant from E and D. - Prove is the perpendicular bisector of

Equidistance Theorems of Angle Bisectors

- Theorem 4-7 If a point lies on the bisector of

an angle, then the point is equidistant from the

sides of the angle. - Theorem 4-8 If a point is equidistant from the

sides of an angle, then the point lies on the

bisector of the angle. - Q Can you combine both theorems into one

biconditional statement?

Example

- Given bisects ?ADE bisects ?DEC
- Prove bisects ?ABC

About PowerShow.com

PowerShow.com is a leading presentation/slideshow sharing website. Whether your application is business, how-to, education, medicine, school, church, sales, marketing, online training or just for fun, PowerShow.com is a great resource. And, best of all, most of its cool features are free and easy to use.

You can use PowerShow.com to find and download example online PowerPoint ppt presentations on just about any topic you can imagine so you can learn how to improve your own slides and presentations for free. Or use it to find and download high-quality how-to PowerPoint ppt presentations with illustrated or animated slides that will teach you how to do something new, also for free. Or use it to upload your own PowerPoint slides so you can share them with your teachers, class, students, bosses, employees, customers, potential investors or the world. Or use it to create really cool photo slideshows - with 2D and 3D transitions, animation, and your choice of music - that you can share with your Facebook friends or Google+ circles. That's all free as well!

For a small fee you can get the industry's best online privacy or publicly promote your presentations and slide shows with top rankings. But aside from that it's free. We'll even convert your presentations and slide shows into the universal Flash format with all their original multimedia glory, including animation, 2D and 3D transition effects, embedded music or other audio, or even video embedded in slides. All for free. Most of the presentations and slideshows on PowerShow.com are free to view, many are even free to download. (You can choose whether to allow people to download your original PowerPoint presentations and photo slideshows for a fee or free or not at all.) Check out PowerShow.com today - for FREE. There is truly something for everyone!

You can use PowerShow.com to find and download example online PowerPoint ppt presentations on just about any topic you can imagine so you can learn how to improve your own slides and presentations for free. Or use it to find and download high-quality how-to PowerPoint ppt presentations with illustrated or animated slides that will teach you how to do something new, also for free. Or use it to upload your own PowerPoint slides so you can share them with your teachers, class, students, bosses, employees, customers, potential investors or the world. Or use it to create really cool photo slideshows - with 2D and 3D transitions, animation, and your choice of music - that you can share with your Facebook friends or Google+ circles. That's all free as well!

For a small fee you can get the industry's best online privacy or publicly promote your presentations and slide shows with top rankings. But aside from that it's free. We'll even convert your presentations and slide shows into the universal Flash format with all their original multimedia glory, including animation, 2D and 3D transition effects, embedded music or other audio, or even video embedded in slides. All for free. Most of the presentations and slideshows on PowerShow.com are free to view, many are even free to download. (You can choose whether to allow people to download your original PowerPoint presentations and photo slideshows for a fee or free or not at all.) Check out PowerShow.com today - for FREE. There is truly something for everyone!

presentations for free. Or use it to find and download high-quality how-to PowerPoint ppt presentations with illustrated or animated slides that will teach you how to do something new, also for free. Or use it to upload your own PowerPoint slides so you can share them with your teachers, class, students, bosses, employees, customers, potential investors or the world. Or use it to create really cool photo slideshows - with 2D and 3D transitions, animation, and your choice of music - that you can share with your Facebook friends or Google+ circles. That's all free as well!

For a small fee you can get the industry's best online privacy or publicly promote your presentations and slide shows with top rankings. But aside from that it's free. We'll even convert your presentations and slide shows into the universal Flash format with all their original multimedia glory, including animation, 2D and 3D transition effects, embedded music or other audio, or even video embedded in slides. All for free. Most of the presentations and slideshows on PowerShow.com are free to view, many are even free to download. (You can choose whether to allow people to download your original PowerPoint presentations and photo slideshows for a fee or free or not at all.) Check out PowerShow.com today - for FREE. There is truly something for everyone!

For a small fee you can get the industry's best online privacy or publicly promote your presentations and slide shows with top rankings. But aside from that it's free. We'll even convert your presentations and slide shows into the universal Flash format with all their original multimedia glory, including animation, 2D and 3D transition effects, embedded music or other audio, or even video embedded in slides. All for free. Most of the presentations and slideshows on PowerShow.com are free to view, many are even free to download. (You can choose whether to allow people to download your original PowerPoint presentations and photo slideshows for a fee or free or not at all.) Check out PowerShow.com today - for FREE. There is truly something for everyone!

Recommended

«

/ »

Page of

«

/ »

Promoted Presentations

Related Presentations

Page of

Home About Us Terms and Conditions Privacy Policy Contact Us Send Us Feedback

Copyright 2017 CrystalGraphics, Inc. — All rights Reserved. PowerShow.com is a trademark of CrystalGraphics, Inc.

Copyright 2017 CrystalGraphics, Inc. — All rights Reserved. PowerShow.com is a trademark of CrystalGraphics, Inc.

The PowerPoint PPT presentation: "Lesson 32: Median, Angle Bisector, Altitude and Perpendicular Bisector" is the property of its rightful owner.

Do you have PowerPoint slides to share? If so, share your PPT presentation slides online with PowerShow.com. It's FREE!