Thursday

July 31, 2014

July 31, 2014

Posted by **Muja** on Sunday, March 23, 2014 at 1:33am.

- College Math -
**Steve**, Sunday, March 23, 2014 at 6:26amAB has direction (-3,4,1)

BC has direction (0,-2,6)

CD has direction (3,-4,-1)

DA has direction (0,-2,6)

So, AB || CD

and BC || AD

since the sides are parallel in pairs, they must have the same lengths in pairs (I trust you can verify this).

the area is just

|(b-a)x(d-a)|

where a,b,c,d are the vectors to the points A,B,C,D.

- College Math -
**Muja**, Sunday, March 23, 2014 at 7:01amthanks steve. u really help me out.. really appreciate it .. =)

**Related Questions**

geometry - Given: QRST is a parallelogram. Prove: QRST is a square. Complete ...

math - A parallelogram is a convex quadrilateral with four vertices and two sets...

geometry CA - Graph quadrilateral ABCD. Then determine the most precise name for...

Math - True or False. A quadrilateral with these following vertices is a ...

Linear Algebra - Ok this is the last one I promise! It's from a sample exam and ...

Algebra 1--Please, help me! - The coordinates of the vertices of a quadrilateral...

Geometry - The quadrilateral with these following vertices is a parallelogram...

geometry - What is the most precise name for quadrilateral ABCD with vertices A...

geometry - a parallelogram has the vertices (-1,2), (4,4), (2,-1), and (-3,-3). ...

Math - Quadrilateral PQRS has vertices P(0,6), Q(-6,-2), R(2,-4), and S(4,2). ...