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Consider the triangle ABC with vertices ...

Consider the triangle ABC with vertices A(1, 1, 1) B(1, 2, 3) and C(2, 3, 1).
(a) Find`vec(AB)` and `vec(AC)`
Find `vec (AB) xx vec (AC)`
(c) Hence find the area of the triangle ABC.

Text Solution

Verified by Experts

The correct Answer is:
(a)`hat i + 2 hat j`
(b)`- 4 hat i + 2 hat j - hat k`
(c) `1/2 sqrt(21)` sq.units
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