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Triangles can be classified into different shapes.

Equilateral ; All sides the same length ; all angles equal 60 degrees.

Isosceles ; Two sides the same length ; two angles equal size.

Right-Angled ; Three sides can be of different lengths ; MUST have one right-angle.

Scalene ; All sides of different lengths ; all angles of different size.

Common 2-dimensioanal characteristics for ALL triangles. ; -

They contain three(3) sides

They contain three(angles)

The internal angles ALWAYS sum to 180 degrees.

A triangle may also be named a TRIGON ; A polygon of three sides.

NB Triangles drawn on a 3-dimensional surface ( sphere ), the above characteristics can vary.

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lenpollock

Lvl 17
∙ 2w ago

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