Let \(\overrightarrow a = \widehat i + \widehat j - \widehat k\) and \(\overrightarrow b = 2\widehat i + 2\widehat j + \widehat k\) be the two sides of the triangle. Then the area of the triangle is

Let \(\overrightarrow a = \widehat i + \widehat j - \widehat k\) and

1.	Let \(\overrightarrow a = \widehat i + \widehat j - \widehat k\) and \(\overrightarrow b = 2\widehat i + 2\widehat j + \widehat k\) be the two sides of the triangle. Then the area of the triangle is
A.	7
B.	\(\sqrt {13} \)
C.	\(\frac{{\sqrt {13} }}{2}\)
D.	\(\frac{{3\sqrt 2 }}{2}\)
Answer» E.

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Let \(\overrightarrow a = \widehat i + \widehat j - \widehat k\) and \(\overrightarrow b = 2\widehat i + 2\widehat j + \widehat k\) be the two sides of the triangle. Then the area of the triangle is

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