Problem 105 of 7
Classify the triangle with side lengths 10, 11, 12 as acute, right, or obtuse.
Using a hint is okay. It just tells the trainer to give you a little more review.
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compare squares of sides.
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Lengths must first form a triangle; compare square of largest side to sum of squares of other sides.
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Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Order side lengths and identify the largest side c.
2. Compare c squared with a squared plus b squared.
3. Classify based on equal, less, or greater.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Classifying impossible side triples as acute/right/obtuse.