prove that the perpendicular is the shortest line segment joining an external point to a line.
asked Apr 8, 2014 in Geometry Answers by xoxamberxox (340 points)

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1 Answer

we don't really need to say 'perpendicular' because the distance from a point to a line always means the shortest distance.)

This is a great problem because it uses all these things that we have learned so far:

Need Graph Paper?

rectangular grid
 

The distance from a point (mn) to the line Ax + By + C = 0 is given by:

answered 4 days ago by Fangle (160 points)

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