What is the area of quadrilateral with coordinates -1 1 2 2 2 -1 -2 -2

formula for area of quad is
(x1-x3)(y2-y4)-(x2-x4)(y1-y3)/2
by this formula we get -10 but area cannot be negative so it is 10
11 years agoHelpfull: Yes(7) No(2)
Area of Quadrilateral=1/2{[(x1-x3)(y2-y4)]-[(x2-x4)(y2-y4)]}
Use above points ...solve it !!!!!

Answer:10 Sq.units
11 years agoHelpfull: Yes(3) No(5)
The area is then given by the formula
{(x1y2-x2y1)+(x2y3-y2x3).....+(XnY1-YnX1)}/2
solve karke sayad 6 ayega
so ans is 6
may be...
11 years agoHelpfull: Yes(2) No(6)
answer is 9
11 years agoHelpfull: Yes(1) No(2)
tell options
11 years agoHelpfull: Yes(0) No(3)
ans is 16.36
11 years agoHelpfull: Yes(0) No(4)
split the quadrilateral into 2 triangles.
Find the area of 2 triangles and add those areas, u'll get area of quadrilateral as 10appx.
11 years agoHelpfull: Yes(0) No(0)
it will be a combination of a paralellogram whose area will be (0.5*3*3) & a triangle whose area will be (0.5*1*3).
so the ans is = 0.5*(9+3)=6 sqr unt
11 years agoHelpfull: Yes(0) No(1)

What is the area of quadrilateral with coordinates (-1,1),(2,2),(2,-1), -2,-2)