This question-specific review guide is tied to the answer reasoning for a PracticeTestVault item. Use it after you answer the question so the review stays focused on what the prompt actually tested.
What this question is testing
Objective: Apply the Pythagorean theorem.
Prompt focus: Review the prompt, identify the command word, and connect the facts to the tested objective.
Why the correct answer works
421
By the Pythagorean theorem, sqrt(-29^2 + 420^2) = 421.
Why the tempting wrong answer fails
The tempting wrong answer usually loses because it skips the key condition, priority, or evidence in the prompt.
Plain-language takeaway
The deciding step is to apply apply the pythagorean theorem. to the facts given. By the Pythagorean theorem, sqrt(-29^2 + 420^2) = 421.
Simple analogy
Think of apply the pythagorean theorem. like following a short checklist: identify the clue, confirm the rule, and then make the move that fits this exact scenario.
How to review it before a retake
- Underline the command word and name what the question is asking before rereading the choices.
- Compare the correct answer against the closest distractor and write the exact detail that separates them.
- Retest this objective with a fresh question without looking at the rationale first.