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Mathematics
Mathematics
Problem
If a vertex of a triangle is
(
1
,
1
)
(1, 1)
(
1
,
1
)
and the mid-points of two side through this vertex are
(
−
1
,
2
)
(-1, 2)
(
−
1
,
2
)
and
(
3
,
2
)
(3, 2)
(
3
,
2
)
, then find the centroid of the triangle. a.
(
1
3
,
7
3
)
\left(\frac{1}{3}, \frac{7}{3}\right)
(
3
1
,
3
7
)
b.
(
1
,
7
3
)
\left(1, \frac{7}{3}\right)
(
1
,
3
7
)
c.
(
−
1
3
,
7
3
)
\left(-\frac{1}{3}, \frac{7}{3}\right)
(
−
3
1
,
3
7
)
d.
(
−
1
,
7
3
)
\left(-1, \frac{7}{3}\right)
(
−
1
,
3
7
)
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