- Sat Aug 06, 2011 8:50 am
- Forum: Discrete Math
- Topic: finding the area of parallelogram / combination/ permutation
- Replies:
**3** - Views:
**7979**

sorry for the late reply. The line AB will be linear; what you have posted is a quadratic. How did you derive this? since i cant find the gradient so i use the distance formula. i let B=(x,y) and D=(a.b) What was your logic for including "2C1"? well, is because there are 2 'O' s. but i think i know ...

- Wed Aug 03, 2011 1:56 pm
- Forum: Discrete Math
- Topic: finding the area of parallelogram / combination/ permutation
- Replies:
**3** - Views:
**7979**

1) ABCD is a parallelogram and the coordinates of A, B, C are (-8, -11), (1, 2) and (4, 3) respectively. Find the area of the parallelogram. i manage to find that D =( -5.-10) . area of parallelogram = AD x height i'm stuck here. how to find the height? i tried it by finding the angle between AB an...