Sagot :
Find the area of the parallelogram whose vertices are (-5,3) (8,6) (1,-4) and (14,-1)
Step-by-step explanation:
Explanation:
We know that ,
If
P
(
x
1
,
y
1
)
,
Q
(
x
2
,
y
2
)
,
R
(
x
3
,
y
3
)
are the vertices of
△
P
Q
R
, then area of triangle:
Δ
=
1
2
|
|
D
|
|
,
where ,
D
=
∣
∣
∣
∣
∣
x
1
y
1
1
x
2
y
2
1
x
3
y
3
1
∣
∣
∣
∣
∣