In thexy-plane, what is the area of a triangle whose vertices are http://www.collegeboard.com/prod_ima...2c/prac22j.gif,

http://www.collegeboard.com/prod_ima...2c/prac22k.gif, and http://www.collegeboard.com/prod_ima...2c/prac22h.gif?

(A) 3.59 (B) 5.67 (C) 7.91 (D) 11.18 (E) 11.34