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If the origin is the centroid of the tri...

If the origin is the centroid of the triangle PQR with vertices `P (2a , 2, 6)`, `Q ( 4, 3b , 10)`and `R(8, 14 , 2c)`, then find the values of a, b and c.

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To find the values of \( a \), \( b \), and \( c \) given that the origin is the centroid of the triangle \( PQR \) with vertices \( P(2a, 2, 6) \), \( Q(4, 3b, 10) \), and \( R(8, 14, 2c) \), we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Centroid Formula**: The centroid \( G \) of a triangle with vertices \( P(x_1, y_1, z_1) \), \( Q(x_2, y_2, z_2) \), and \( R(x_3, y_3, z_3) \) is given by: \[ G = \left( \frac{x_1 + x_2 + x_3}{3}, \frac{y_1 + y_2 + y_3}{3}, \frac{z_1 + z_2 + z_3}{3} \right) ...
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Knowledge Check

  • If origin is the centroid of a triangle ABC having vertices A(a,1,3), B(-2,b,-5) and C(4,7, c) , then the values of a, b, c are

    A
    a = - 2, b = 8 , c = 2
    B
    a = 2, b = 8, c = - 2
    C
    a = 2, b = - 8, c = 2
    D
    a = - 2, b = - 8, c = 2
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