Question

124. The area of a triangle whose vertices are
A(1,-1, 2)m, B(2, 1, -1)m and C(3,-1, 2)m is :-
(1) 13m?
(2) 8 root13 m?
(3) root 13 m
(4) root 26 m?​

Answer 1

Answer:

124. The area of a triangle whose vertices are

A(1,-1, 2)m, B(2, 1, -1)m and C(3,-1, 2)m is :-

(1) 13m?

(2) 8 root13 m?

(3) root 13 m

(4) root 26 m?