Geometry Practice Test 3

Question : 11 of 40

Marks: +1, -0

Find the co-ordinates of the centroid of a triangle whose vertices are (3, 5), (-2 -1) and (5, -1).

(3, 2.33)
(- 2, -1)
(2, -3.33)
(2, 1)
(-3, -2.33)

Solution:

The co-ordinates of the centroid are: =

({x_1+x_2+x_3}/3,{y_1+y_2+y_3}/3)

({3+(-2)+5}/3,{5+(-1)+(-1)}/3)

(6/3,3/3)

= (2 , 1)

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