Asked by Makayla
How do you find the height of a triangle on a coordinate grid?
Answers
Answered by
Reiny
Pick 2 points to act as the endpoints of the base.
Find the equation of that line and write it in the form Ax + By + C = 0
If the third point is (a,b), then the distance from that point to your base, which is the height, would be
Dist = (aA + bB + C)/SQRT(A^2 + B^2)
Use the absolute value of that answer.
Find the equation of that line and write it in the form Ax + By + C = 0
If the third point is (a,b), then the distance from that point to your base, which is the height, would be
Dist = (aA + bB + C)/SQRT(A^2 + B^2)
Use the absolute value of that answer.
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