All right angle triangles have a 90 degree angle and two acute angles and the 3 of them together add up to 180 degrees
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There are only three kinds of triangle - equilateral, where all three sides are the same - isoceles, where only two sides are the same - and scalene, where no sides are the same. The right triangle is a special case of the isoceles or scalene. Even if you consider the right triangle different, which is is not, that only make five kinds of triangle.
right triangle. obtuse triangle. acute triangle
might be an equilateral triangle. isosceles triangle or a right angled triangle :)
acute angled triangle,right angled triangle,obtuse angled triangle,isosceles triangle,equilateral triangle, scalene triangle
Right triangle (has one 90 degree angle). Isosceles triangle (has two equal length sides).