Question

9. If A (4,3); B (-1, Y) and C (3, 4) are the vertices of a right angled triangle
ABC. LA = 90°. Then find the value of Y.
Find them​

Answer 1

Explanation:

slope of AC = m1 = -1

slope of AB = m2 = (4-Y)/4

as AB is perpendicular to AC so m1m2=-1

so 4-Y=4so Y=0

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Answer 2

Answer:

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