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Mathematics
Problem
Points
A
(
1
,
1
)
A(1,1)
A
(
1
,
1
)
and
B
(
5
,
1
)
B(5,1)
B
(
5
,
1
)
are two vertices of a triangle. Which of the following points
C
C
C
will make
△
A
B
C
\triangle ABC
△
A
B
C
a right triangle with the right angle at
C
C
C
? a)
(
3
,
1
)
(3,1)
(
3
,
1
)
b)
(
1
,
3
)
(1,3)
(
1
,
3
)
c)
(
3
,
3
)
(3,3)
(
3
,
3
)
d)
(
4
,
2
)
(4,2)
(
4
,
2
)
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