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Congruent Triangles True or False

1. Which of the following statements is true? -> The sum of all exterior angles in a triangle is always equal to two times the sum of the interior angles in the triangle.
2. Under what circumstances are equilateral triangles acute? -> Always
3. Under what circumstances are isosceles triangles equilateral? -> Only when the isosceles triangle is right
4. According to the Exterior Angle Theorem, which of the following is true? -> Exterior angles are the supplements to interior angles
5. Which is true about scalene triangles specifically? -> They are always acute
6. A triangle has angle measurements of 80° and 92°. What is the measurement of the final angle? -> 8°
7. Which of the following is false? -> A triangle can have a maximum of two obtuse angles
8. If one of the exterior angles of a triangle equals 73° and one if its interior angles is 29°, what are the measures of its three angles? -> 29°, 78°, 107°
9. If two of the interior angles of a triangle add up to 45°, what kind of triangle must it be? -> Obtuse
10. An isosceles triangle can never be which of the following? -> Equilateral

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