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In terms of the length the sides of a triangle it can be classified into three types:if all three sides are equal then the triangle is an equilateral triangleif only two sides are equal then the triangle is an isosceles triangleif none of the three sides are equal then the triangle is called a scalene triangle
The sides of a geometrical figure, particularly a triangle, can be called either arms or legs. Arms is more commonly used.
perimeter of triangle is sum of three sides i.e if a,b,c are three sides of triangle then perimeter is a+b+c. coming to your question answer is 13+5+x
There is no such object - .A triangle has 3 sides (tri = 3 ) . A quadrilateral has 4 sides ( quad = 4 )The word 'triangle' means 3 angles and it is a 3 sided polygon whose 3 inside angles add up to 180 degrees.a plane figure with three straight sides and three anglesA contradiction in terms. Perhaps you are thinking of an equilateral triangle where all sides are the same size.
A pentagon with 14 sides is called a "contradiction in terms".The definition of a pentagon is: A figure with fivesides.