Question

Which characteristics will prove that DEF is an acute isosceles triangle

Answer 1

- The angles in the triangle DEF must all be acute angles- angles smaller than a right angle (90 degrees) to prove an acute isosceles triangle. - The angles in the triangle DEF must all be acute angles- angles smaller than a right angle (90 degrees) to prove an acute isosceles triangle

Answer 2

Question: Which characteristics will prove that ΔDEF is an acute, isosceles trianglle?

Explanation:

Correct Choice: segment DE and segment EF are congruent to each other but not to segment DF, and their slopes are not related.

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