Q24 of 77 Page 7


If the points (-1, 3), (1, -1) and (5, 1) are vertices of a triangle, find thelength of the median through third vertex.

5 units
SOLUTION:

Let the points A(-1, 3), B(1, -1) and C(5, 1) be the vertices of a triangle ABC. Let D be the midpoint of AB. Then the coordinate of D is
Length of the median is CD Â

Â

= 5 units

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