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How to write proofs in geometry

User Bquenin
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Final answer:

Writing geometric proofs involves a clear, logical sequence of steps supported by definitions, axioms, and theorems. Practice with known facts, like the Pythagorean Theorem, helps ensure correctness and understanding of the process.

Step-by-step explanation:

To write proofs in geometry, it is essential to understand that they are logical arguments that use definitions, axioms, postulates, and previously established theorems to show that a certain statement is true. Here is a step-by-step guide on how to approach writing a geometrical proof:

  • Identify the given information and what you need to prove (the conclusion).
  • Draw a diagram to visualize the problem, if possible.
  • List all known facts and theorems that may pertain to the problem.
  • Decide on a plan to bridge the gap between the given information and what you need to prove.
  • Write the proof by stating your facts and arguments clearly and in a logical sequence.
  • Make sure each step in your proof is supported by a definition, postulate, or theorem.
  • Conclude the proof by showing that you've arrived at the statement you set out to prove.

Remember that practice is vital in mastering proof writing. You can use known cases, like the Pythagorean Theorem, to test whether you're applying the right rules and verify that your techniques are correct. Much like in trigonometry and physics, consistency and logical flow are the foundation of correct geometric proofs. By carefully applying the right rules and postulates, you build your knowledge on a solid base that allows you to explore and understand complex geometrical concepts. Ultimately, this empowers you to be the 'boss' of the math, using it as a tool rather than merely following formulas blindly.

User Haravikk
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Make a game plan. ...
Make up numbers for segments and angles. ...
Look for congruent triangles (and keep CPCTC in mind). ...
Try to find isosceles triangles. ...
Look for parallel lines. ...
Look for radii and draw more radii. ...
Use all the givens.
User Eugen Timm
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