What is the area of this triangle?

A. A=1/2(y3-y2)(x3-x1)

B. A=1/2(y3-y1)(x3-x1)

C. A=1/2(y3-y1)(x3-x1)

D. A=1/2(y2-y1)(x3-x1)

E. A=1/2(y2-y1)(x2-x1)​

What is the area of this triangle A A12y3y2x3x1 B A12y3y1x3x1 C A12y3y1x3x1 D A12y2y1x3x1 E A12y2y1x2x1 class=