Area of a Parallelogram with out cross products

[c-murda]

Homework Statement

given the vertices:
(0,0)
(3,1)
(2,3)
(5,4)

Homework Equations

solving without cross products and with mathematica if available

The Attempt at a Solution

Te1=[3]
[1]
Te2=[2]
[3]


[det[Ay]]
________

[det[A]]

get you the solution

i got 7

correct?

 

[Defennder]

Yeah it looks ok. By the way since you have mathematica, couldn't you have verified the answer?

 

[c-murda]

Yeah it looks ok. By the way since you have mathematica, couldn't you have verified the answer?

i don't have mathematica that why i was checking my answer. and to know i could do it by hand.

thanks!