krystalhurst97
13.10.2020 •
Mathematics
Writing a two column proof
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Ответ:
Number each step.
Start with the given information.
Statements with the same reason can be combined into one step. It is up to you.
Draw a picture and mark it with the given information.
You must have a reason for EVERY statement.
The order of the statements in the proof is not always fixed, but make sure the order makes logical sense.
Reasons will be definitions, postulates, properties and previously proven theorems. “Given” is only used as a reason if the information in the statement column was given in the problem.
Use symbols and abbreviations for words within proofs. For example, ≅ can be used in place of the word congruent. You could also use ∠ for the word angle.
Suppose you are told that ∠XYZ is a right angle and that YW−→− bisects ∠XYZ. You are then asked to prove ∠XYW≅∠WYZ.
Step-by-step explanation:
Ответ: