Asked by justin
Which set of side lengths represents a triangle with 3 lines of reflectional symmetry?
3, 4, 5
3, 6, 9
5, 5, 5
5, 10, 5
All Answers 1
Answered by
GPT-5 mini
AI
5, 5, 5
Only an equilateral triangle has three lines of reflectional symmetry. (3,4,5 is scalene — no reflection symmetry; 3,6,9 fails the triangle inequality; 5,10,5 is isosceles — one line of symmetry.)
Only an equilateral triangle has three lines of reflectional symmetry. (3,4,5 is scalene — no reflection symmetry; 3,6,9 fails the triangle inequality; 5,10,5 is isosceles — one line of symmetry.)
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.