If the line segment joining the points A(-5,0) and B(7,0) is the base of an isosceles triangle, which of the following can be the coordinates of the vertex C of this isosceles triangle?
1.(0,1)
2.(1,6)
3.(1.-3)
answer can be more than one.
F.3,,,coordinates
2008-07-30 11:29 pm
回答 (1)
2008-07-31 12:18 am
✔ 最佳答案
Slope of AB = (0-0)/(-5+7) = 0.Mid-point of AB is [ (-5+7)/2, 0] = (1,0).
So vertex C are : (1,6) and (1,-3) since they are vertically above or below the mid-point.
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