Question

Find the area of a parallelogram with the given vertices.

P(1, 3), Q(3, 3), R(7, 8), S(9, 8)

A. 10 units2

B. 5 units2

C. 20 units2

D. none of these

Answer 1

might help if we move this to the origin, say move by P

Answer 2

P(1, 3), Q(3, 3), R(7, 8), S(9, 8)
-1 -3 -1 -3 -1 -3 -1 -3
------------------------------
0 0 2 0 6 5 8 5



65 85 |
| 5 high
|
00 20 |
--------
2 base

Answer 3

area is just base times height :)

Answer 4

thanks :)