Two vertices of a triangle are (5,2) and (4,4).If its
centroid is (2,5),then third vertex is
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3
Answer:
(-3,9)
Step-by-step explanation:
use the formula of centroid
take coordinate of x axis
(5+4+x)÷3=2
5+4+x=3×2
9+x=6
x=6-9
x= -3
take coordinate of y axis
(2+4+x)÷3= 5
2+4+x=5×3
6+x= 15
x= 15-6
x= 9
then third vertex is (-3,9)
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