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Mathematics
Mathematics
Problem
For the vertices
P
(
2
,
1
)
P(2,1)
P
(
2
,
1
)
,
Q
(
−
1
,
4
)
Q(-1,4)
Q
(
−
1
,
4
)
and
R
(
0
,
−
3
)
R(0,-3)
R
(
0
,
−
3
)
, which of the following pairs (area in square units, orientation) is correct for
△
P
Q
R
\triangle PQR
△
P
QR
? a)
(
18
,
counter-clockwise
)
(18,\,\text{counter-clockwise})
(
18
,
counter-clockwise
)
b)
(
9
,
counter-clockwise
)
(9,\,\text{counter-clockwise})
(
9
,
counter-clockwise
)
c)
(
9
,
clockwise
)
(9,\,\text{clockwise})
(
9
,
clockwise
)
d)
(
4.5
,
counter-clockwise
)
(4.5,\,\text{counter-clockwise})
(
4.5
,
counter-clockwise
)
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