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4 years ago

7

Prove that if (a, b) and (c, d) are two distinct points, the line joining them is perpendicular to the line joining (b, c) and (

d, a)

1 answer:

Alex787 [66]4 years ago

3 0

First, find the slopes of each line. This is (b-d)/(a-c) and (b-s)/(c-a). Since the product is -1, they are perpendicular.

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