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Question 209565: Use the distance formula on this geometry problem. Find the lengths of the segments. Tell whether any of the segments have the same length.
Problem uses the x, y, coordinate.
Segments are E (1,4)
F (5,6)
G (5,1) and
H (4,-4)
Please show work.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Segments are
E (1,4)
F (5,6)
s^2 = diffy^2 + diffx^2
s^2 = (6-4)^2 + (5-1)^2 = 4 + 16
s^2 = 20
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G (5,1)
H (4,-4)
s^2 = (-4-1)^2 + (4-5)^2 = 25 + 1
s^2 = 26
Since the squares of the lengths are different, the lengths are different.
Note that the order doesn't matter when the differences are taken as they are squared. (-4)^2 is the same as 4^2.
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diffy is usually stated first, tho the order is not relevant. This order is important in other calculations, tho, such as the slope of lines -
slope = diffy/diffx
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