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This diagram illustrates how the interior angles of right, isosceles, equilateral, and scalene triangles always add up to 180 degrees.

Infographic illustrating that the sum of interior angles in right, isosceles, equilateral, and scalene triangles equals 180 degrees.

Infographic illustrating that the sum of interior angles in right, isosceles, equilateral, and scalene triangles equals 180 degrees.

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