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The face of a triangle is the flat surface of the solid figure. _________________________________________________ A face is a side of a 3 dimensional figure. So, the number of faces a triangle would be 0.
in a triangle "IRH"
It s an equilateral triangle
It is a scalene triangle that has 3 sides of different lengths
In general, a triangle can have 0, 1 or 3 lines of symmetry.