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Mathematics
Mathematics
Problem
Determine all possible values of
k
k
k
such that the triangle with vertices
P
(
k
,
2
)
P(k,2)
P
(
k
,
2
)
,
Q
(
4
,
k
)
Q(4,k)
Q
(
4
,
k
)
and
R
(
1
,
5
)
R(1,5)
R
(
1
,
5
)
has an area of
7
square units
7\ \text{square units}
7
square units
.
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