1.5 Postulates and Theorems Relating Points, Lines, and Planes
2-3: Proving Theorems. Reasons used in Proofs Given information Definitions Postulates (Algebraic...
7
2-3: Proving Theorems
-
Upload
esther-hunter -
Category
Documents
-
view
214 -
download
0
Transcript of 2-3: Proving Theorems. Reasons used in Proofs Given information Definitions Postulates (Algebraic...
![Page 1: 2-3: Proving Theorems. Reasons used in Proofs Given information Definitions Postulates (Algebraic Properties included) Theorems that have already been.](https://reader036.fdocuments.in/reader036/viewer/2022082713/5697bff71a28abf838cbe75a/html5/thumbnails/1.jpg)
2-3: Proving Theorems
![Page 2: 2-3: Proving Theorems. Reasons used in Proofs Given information Definitions Postulates (Algebraic Properties included) Theorems that have already been.](https://reader036.fdocuments.in/reader036/viewer/2022082713/5697bff71a28abf838cbe75a/html5/thumbnails/2.jpg)
Reasons used in Proofs
• Given information• Definitions• Postulates (Algebraic Properties included)• Theorems that have already been proved
![Page 3: 2-3: Proving Theorems. Reasons used in Proofs Given information Definitions Postulates (Algebraic Properties included) Theorems that have already been.](https://reader036.fdocuments.in/reader036/viewer/2022082713/5697bff71a28abf838cbe75a/html5/thumbnails/3.jpg)
• Theorem 2-1: The Midpoint Theorem– If M is the midpoint of AB, then AM = ½ AB and
MB = ½ AB
Let’s Look at Proof on page 43
![Page 4: 2-3: Proving Theorems. Reasons used in Proofs Given information Definitions Postulates (Algebraic Properties included) Theorems that have already been.](https://reader036.fdocuments.in/reader036/viewer/2022082713/5697bff71a28abf838cbe75a/html5/thumbnails/4.jpg)
• Theorem 2-2: The Angle Bisector Theorem– If ray BX is the bisector of <ABC , then m < ABX = ½
m <ABC and m <XBC = ½ m < ABCProve on your own
![Page 5: 2-3: Proving Theorems. Reasons used in Proofs Given information Definitions Postulates (Algebraic Properties included) Theorems that have already been.](https://reader036.fdocuments.in/reader036/viewer/2022082713/5697bff71a28abf838cbe75a/html5/thumbnails/5.jpg)
• Look at Example 2 on page 44
![Page 6: 2-3: Proving Theorems. Reasons used in Proofs Given information Definitions Postulates (Algebraic Properties included) Theorems that have already been.](https://reader036.fdocuments.in/reader036/viewer/2022082713/5697bff71a28abf838cbe75a/html5/thumbnails/6.jpg)
Classwork
• Pg 45: 1-10 together
![Page 7: 2-3: Proving Theorems. Reasons used in Proofs Given information Definitions Postulates (Algebraic Properties included) Theorems that have already been.](https://reader036.fdocuments.in/reader036/viewer/2022082713/5697bff71a28abf838cbe75a/html5/thumbnails/7.jpg)
Homework
• Pg 46: 1-8, 10-18, 19• study for quiz over 2.1-2.3