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20

Step-by-step Answer
PAGE: 276SET: ExercisesPROBLEM: 20
Please look in your text book for this problem Statement

The given vertices of the triangle are  .

Since  is the median so is midpoint of  .

Use midpoint formula to find the coordinates of X.

So, coordintes of X are 0 and 7.

Using distance formula find .

                       (Simplify)

The measure of is 5.



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