- #1
numb_dumb
- 5
- 0
A(2,1) b(8,1) C(4,3) D(6,6)
let these be 4 points(vertices) of a quadrilateral
so i calculated it out as
2 1
8 1
4 3
6 6
2 1
multiplying diagonal elements
Area = |(2*1-8*1)+(8*3-1*4)+(4*6-3*6)+(6*1-2*6)/2|=7
but the answer is 14 and it gives different answers for different choice of co-ordinate order
so how to judge which one is correct?
any limitation to use this rule?
my heads going crazy over this...
let these be 4 points(vertices) of a quadrilateral
so i calculated it out as
2 1
8 1
4 3
6 6
2 1
multiplying diagonal elements
Area = |(2*1-8*1)+(8*3-1*4)+(4*6-3*6)+(6*1-2*6)/2|=7
but the answer is 14 and it gives different answers for different choice of co-ordinate order
so how to judge which one is correct?
any limitation to use this rule?
my heads going crazy over this...