Problem 126 of 7
Choose valid side lengths under design constraints two sides measure 10 and 15; the perimeter must be less than 40.
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Hidden until you reveal it.
apply triangle inequality and context limits.
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Design choice must satisfy strict triangle inequality and any context limits.
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Your answer is equivalent to the expected form.
Walkthrough
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1. Find the triangle-inequality range for the unknown side.
2. Apply the additional design constraint.
3. State valid choices or explain invalidity.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Endpoint equality as valid.