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Problem
Problem
Without using Pythagoras theorem, show that the points
A
(
−
1
,
3
)
A(-1, 3)
A
(
−
1
,
3
)
,
B
(
0
,
5
)
B(0, 5)
B
(
0
,
5
)
and
C
(
3
,
1
)
C(3, 1)
C
(
3
,
1
)
are the vertices of a right angled triangle.
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