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Q: Are all scalene triangles acute angles?

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No because an equilateral triangle has 3 equal acute angles of 60 degrees but a scalene triangle has 3 acute angles of different sizes.

equilateral triangle, acute triangle, some isosceles and scalene triangles

no you can have an obtuse scalene triangle

No

A scalene triangle could have three acute angles, one right angle and two acute angles, or one obtuse angle and two acute angles.

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No. Scalene triangles have no equal sides or angles but can be obtuse, right angled or acute.

No because an equilateral triangle has 3 equal acute angles of 60 degrees but a scalene triangle has 3 acute angles of different sizes.

Not always because one of the interior angles could be obtuse.

equilateral triangle, acute triangle, some isosceles and scalene triangles

no you can have an obtuse scalene triangle

No, not necessarily.

No

In an acute triangle, all three angles are acute.

Scalene

All triangles have at least two acute angles. Acute triangles have three. Rhomboids also have two acute angles.

A scalene triangle could have three acute angles, one right angle and two acute angles, or one obtuse angle and two acute angles.

No, scalene triangles can be obtuse, right or acute triangles. A 3 - 4 -5 right triangle (lengths of the sides) is one example of a right-scalene triangle. In fact, with the exception of the [45°, 45°, 90°] right triangle (which is isosceles) all other right triangles are scalene.

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