features of triangle
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Triangles are polygons with the least possible number of sides (three). The three internal angles of a triangle always add to 180 degrees. An equilateral triangle has three sides of equal length and three equal angles. An isosceles triangle has two sides of equal length and two equal angles.
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Triangles are shapes with three sides. They are known as polygons which are shapes that have three or more lines, have straight lines and are closed shapes. There are 6 types of triangles but what they all have in common is that their interior angle sum equals to 180 degrees. The 6 types of triangles are equilateral triangles, right triangles, scalene triangles, obtuse triangles, acute triangles, and isosceles triangles.
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