A geometric shape consisting of line segments connecting three points that are not on the same line is called a triangle. We can classify triangles in two different ways: according to their angles or according to their sides.
Equilateral triangle: Triangles with all equal side lengths.
Isosceles triangle: Triangles with two equal sides.
Scalene triangle: Triangles with different side lengths.
Acute triangle: Triangles with all three angles less than 90 degrees.
Right-angled triangle: Triangles with one angle of 90 degrees
Obtuse triangle: Triangles with one angle greater than 90 degrees.
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