Class 12 Vector Algebra · Mcq Single Correct1 Markscross_product_area
Class 12 Maths · Vector Algebra · Mcq Single Correct #2
Find the area of triangle OAB, where OA = (1,2,3) and OB = (−3,−2,1).
✅ Step-by-Step Solution
Final Answer: Option (A): 3√5
- OA × OB = (8,−10,4), of magnitude 6√5. Triangle area is half: 3√5 square units.
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