Geometry
The 10 Most Common Mistakes
As you prepare, keep the following common mistakes in mind. Some are mistakes to avoid when taking the actual test. Others are mistakes to avoid during your preparation for the test.
  1. Forgetting one of the essential geometry concepts. (Know those rules and formulas!)
  2. Forgetting to look for hidden, unstated geometrical figures (especially triangles) that hold the key to an item.
  3. Trying to work an item in your head instead of writing your work down.
  4. Failing to pick the answer the item asks for. Often this is not the same things as finding the critical value needed to solve the item.
  5. Failing to work through our practice sets—reading this book is not enough!
  6. Failing to practice the step methods on every practice test item. You need these methods when the answer isn't obvious to you.
  7. Forgetting to eyeball a Treasure Map item to rule out unlikely answer choices.
  8. Refusing to guess when you've eliminated one answer choice.
  9. Answering every item in order.
  10. Rushing through a set instead of thinking each item through.
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