Question
Mathematics Question on Triangles
Let two vertices of triangle ABC be (2, 4, 6) and (0, –2, –5), and its centroid be (2, 1, –1). If the image of third vertex in the plane x + 2y + 4z = 11 is (α, β, γ), then αβ + βγ + γα is equal to
A
70
B
72
C
74
D
76
Answer
74
Explanation
Solution
The Correct Option is (C):74