Question

Calculate the area of a triangle whose vertices are given by (3,-1,2), (1, -1,2)
and (4, -2, 1).​

Answer 1

Explanation:

don't worry I am here

use the triangle formula

then the solve the problem

Answer 2

Answer:

The question itself is wrong. The vertices should be (x, y).

Explanation:

Area=1/2 |x1(y2-y3)+x2(y3-y1)+x3(y1-y2)|