Question

(10)
Arca of the triangle whose base is given by A=i+j+k and one of the two sides by B=4j+3k is
126​

Answer 1

Answer:

ARCA bbbb 8010

Explanation:

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Answer 2

Answer:

$\sqrt{26}/2$

Explanation:

Area of a triangle = 1/2|A x B|

A = i + j + k

B = 4j + 3k

1/2|(i + j + k)x(4j + 3k)|

1/2|4k - 3j + 3i -4i|

1/2($\sqrt{1 + 9 + 16}$)

....

$\sqrt{26}/2$