1.

Using vectors, find the area of the triangle with vertices:(i) A(1, 1, 2), B(2, 3, 5) and C(1, 5, 5)(ii) A(1, 2, 3), B(2, −1, 4) and C(4, 5, −1) [CBSE 2011, NCERT EXEMPLAR]

Answer» Using vectors, find the area of the triangle with vertices:

(i) A(1, 1, 2), B(2, 3, 5) and C(1, 5, 5)

(ii) A(1, 2, 3), B(2, −1, 4) and C(4, 5, −1) [CBSE 2011, NCERT EXEMPLAR]


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