greatwhiteshark
Full Member
- Joined
- May 8, 2005
- Messages
- 279
There are two kinds of proofs: direct and indirect.
We are learning to proof geometry using what is called the TWO-COLUMN METHOD. On the left side is the statement and on the right side the reason. I often DO NOT know which part of a geometric shape to prove first or in what order the shape should be proven.
Questions:
1) Does it really matter what order the statement section is proven?
2) What exactly do I need to memorize in order to be successful when proving geometric shapes?
3) What is the difference between indirect and direct geometric proofs?
Below is a sample question. I have NO CLUE where to begin. I notice that there are proofs that require more statements and reasons than others.
Here is a sample question:
Given:
C is the midpoint of segment AD.
C is the midpoint of segment BE.
Prove: Triangle ABC is congruent to Triangle DEC
This has been my biggest challenge in math. This is worst than word problems. I have NO CLUE how to tackle this type of question. I am frustrated. Help.
MY WORK:
Statement Reason
C is the midpoint of AD. Given
C is the midpoint os BE. Given
Where do I go from here? I have been fighting with proofs for months but to NO AVAIL. What is the easiest way to tackle geometric proofs?
How do I finish the question above?
We are learning to proof geometry using what is called the TWO-COLUMN METHOD. On the left side is the statement and on the right side the reason. I often DO NOT know which part of a geometric shape to prove first or in what order the shape should be proven.
Questions:
1) Does it really matter what order the statement section is proven?
2) What exactly do I need to memorize in order to be successful when proving geometric shapes?
3) What is the difference between indirect and direct geometric proofs?
Below is a sample question. I have NO CLUE where to begin. I notice that there are proofs that require more statements and reasons than others.
Here is a sample question:
Given:
C is the midpoint of segment AD.
C is the midpoint of segment BE.
Prove: Triangle ABC is congruent to Triangle DEC
This has been my biggest challenge in math. This is worst than word problems. I have NO CLUE how to tackle this type of question. I am frustrated. Help.
MY WORK:
Statement Reason
C is the midpoint of AD. Given
C is the midpoint os BE. Given
Where do I go from here? I have been fighting with proofs for months but to NO AVAIL. What is the easiest way to tackle geometric proofs?
How do I finish the question above?