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प्रश्न
A(1, −5), B(2, 2) and C(−2, 4) are the vertices of triangle ABC. Find the equation of the altitude of the triangle through B.
बेरीज
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उत्तर
Let BE be the altitude of the triangle through B.
Slope of AC = `(4 + 5)/(-2 - 1) = 9/-3 = -3`
∴ Slope of BE = `(-1)/("slope of AC") = 1/3 `
Equation of altitude BE is
`y - 2 = 1/3 (x - 2)`
3y − 6 = x − 2
3y = x + 4
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