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  1. Suppose that the medians BD, CE and AF of a triangle ABC meet at G. Then AG : GF is
    1. 1 : 2
    2. 2 : 1
    3. 1 : 3
    4. 2 : 3
Correct Option: B

We draw a figure triangle ABC whose the medians BD, CE and AFmeet at point G ,

Point G is the centroid of ∆ ABC.
Point G divides AF (each median) in the ratio 2 : 1.
Proof :-

Reflect ∆ ABC on side AC.
ABCB1 is a parallelogram.
BEB1 is a straight line. and
∵ CD = AD, and CD || AD1
DCD1A is a parallelogram.
DG || CG1
∵ BD = DC and DG || CG, and BG = GG1
∴ BG : GG1 = 1 : 1
∵ GE = EG1, BG = GE = 2 : 1



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