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Question

If G is the centroid of ΔABC and O is any point then ¯¯¯¯¯¯¯¯OA+¯¯¯¯¯¯¯¯OB+¯¯¯¯¯¯¯¯OC=

A
¯¯¯¯¯¯¯¯¯OG
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B
2¯¯¯¯¯¯¯¯¯OG
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C
3¯¯¯¯¯¯¯¯¯OG
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D
4¯¯¯¯¯¯¯¯¯OG
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Solution

The correct option is C 3¯¯¯¯¯¯¯¯¯OG
Let O be the origin

Then from the triangle we get

OA+OB+OC=a+b+c

OG=a+b+c3

OA+OB+OC=3OG

Hence, the option D is the correct answer.

1206816_1187569_ans_74f3edd3b76645d58efac21a29a0d706.JPG

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