Giving 13 points!

a triangle is graphed in the coordinate plane. the vertices of the triangle have coordinates (–5, 1), (1, 1), and (1, –7). what is the perimeter of the triangle?

question 10 options:

24

28

14

10

To determine the perimeter of the triangle given the vertices, calculate the distances between pair of points. For the first pair (-5,1) and (1,1), the distance is 6. For the next pair, (1,1) and (1, -7), the distance is 8. Lastly, for the pair of points (-5,1) and (1, -7), the distance is 10. Adding all the distance will give the perimeter of the triangle. Thus, the perimeter is 24. 

She should use 12/3 to measure

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