Question
Use the cross product to find the area of the triangle with vertices $(a, 0,0),(0, b, 0),$ and $(0,0, c)$.
Step 1
We can choose vectors AB and BC. The vector AB is obtained by subtracting the coordinates of point A from point B, and the vector BC is obtained by subtracting the coordinates of point B from point C. So, we have: AB = B - A = (0, b, 0) - (a, 0, 0) = (-a, b, Show more…
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'Find the area of the triangle with vertices at (1, 0,0), (0, 1, 0), and (0, 0, 3).'
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