A segment that joins a vertex of a triangle and the midpoint of the side opposite that vertex is called a median. The three medians are concurrent at the centroid (the point of their intersection, and it is two-thirds of the way down each median. For example, if the three medians AA', BB', and CC' of the triangle ABC, intersect at G, then AG = 2GA', BG = 2BG', and CG = 2CG')
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That is true.
Yes, a scalene triangle can be a triangle.
The definition of the word "scalene" is a triangle having three sides of different lengths.The mathematical definition of "symmetry" is an exact reflection of form on opposite sides of a dividing line/plane.Therefore, by definition, no lines of symmetry exist in a scalene triangle.
It makes no difference that the triangle is scalene. If the coordinates of the three vertices are (x1, y1), (x2, y2) and (x3, y3), then the coordinates of the midpoint (centroid) is [(x1 + x2 + x3)/3, (y1 + y2 + y3)/3]. Alternatively, join any two vertices to the midpoint of the opposite side. They (and the third median) will meet at the centroid.
A scalene triangle has three sides of different lengths. A right triangle can be scalene - for instance the '3-4-5' triangle has a right angle opposite the side which is 5 units long.
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Yes, a scalene triangle can be a triangle.
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true
That is true.
Yes.
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It's called a scalene triangle.
Yes
A scalene triangle makes it scalene because all sides have different length.