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Number 1. no congruent sides lengths
Correct Answer: scalene triangle
Number 2. triangle with at least two congruent side lengths
Correct Answer: isosceles triangle
Number 3. triangle with three congruent side lengths
Correct Answer: equilateral triangle
Number 4. triangle with three acute angles
Correct Answer: acute triangle
Number 5. triangle with one right angle
Correct Answer: right triangle
Number 6. triangle with one obtuse angle
Correct Answer: obtuse triangle
Number 7. This theorem states that the sum of all three angles in a triangle is 180o
Correct Answer: triangle sum theorem
Number 8. formed when a side of a triangle has been extended
Correct Answer: exterior angle
Number 9. non-adjacent interior angles to the exterior angle of a triangle
Correct Answer: remote interior angles
Number 10. states that the measure of an exterior angle in a triangle is equal to the sum measures of the two non adjacent interior angles
Correct Answer: exterior angle theorem
