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a) If the points (-1, 3), (1, -1) and (5, 1) are the vertices of a triangle, then find the length of the median drawn through (5, 1).​

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Answer:

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Explanation:

To find the length of the median drawn through (5, 1) in the triangle formed by the points (-1, 3), (1, -1), and (5, 1), we need to calculate the distance between (5, 1) and the midpoint of the side opposite to it.

Let's label the given points as follows:

A = (-1, 3)

B = (1, -1)

C = (5, 1)

To find the midpoint of side AB, we use the midpoint formula:

Midpoint AB = ((x_A + x_B) / 2, (y_A + y_B) / 2)

Substituting the coordinates of A and B:

Midpoint AB = ((-1 + 1) / 2, (3 + (-1)) / 2)

= (0 / 2, 2 / 2)

= (0, 1)

So, the midpoint of side AB is M(0, 1).

Now, we can calculate the distance between (5, 1) and M(0, 1) using the distance formula:

Distance = √((x_2 - x_1)^2 + (y_2 - y_1)^2)

Substituting the coordinates of (5, 1) and (0, 1):

Distance = √((5 - 0)^2 + (1 - 1)^2)

= √(5^2 + 0^2)

= √25

= 5

Therefore, the length of the median drawn through (5, 1) is 5 units.

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