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Original Question
Find all values of x so that the triangle with vertices A=(−3, 1, x), B=(−3, 4, −2), and C=(−2, −2, 2) has a right angle at A.Asked by Kazuto
Find all values of x so that the triangle with vertices A=(−4, −3, x), B=(−7, 0, 5), and C=(−1, −6, 8) has a right angle at A.
Answers
Answered by
Kazuto
Hello, can you help me with this question?
Answered by
hi
i need help. On im doing a 5 column chart for social studies. If u look on newest and u see social studies that may be mine the name is still the same
Answered by
oobleck
as with the other question just like this one, you want AB•AC = 0
So,
A=(−4, −3, x), B=(−7, 0, 5), and C=(−1, −6, 8)
(-7+4)(-1+4) + (0+3)(-6+3) + (5-x)(8-x) = 0
x = 2 or 11
So,
A=(−4, −3, x), B=(−7, 0, 5), and C=(−1, −6, 8)
(-7+4)(-1+4) + (0+3)(-6+3) + (5-x)(8-x) = 0
x = 2 or 11
Answered by
Kazuto
Thanks oobleck, I just figured it out lol... thanks for confirming I got it right
Answered by
hi
can someone pls help me