TS EAMCET · Maths · Vector Algebra
The four points and forms a
- A Square
- B Parallelogram
- C Rectangle
- D Rhombus
Answer & Solution
Correct Answer
(B) Parallelogram
Step-by-step Solution
Detailed explanation
Let A≡2,-1,3, B≡4,-2,1, C≡4,5,-7 & D≡2,6,-5 Let mid-point of AC & BD are M & N M=4+22,5-12,-7+32, N=4+22,-2+62,1-52 ⇒M=N=3,2,-2 So, at least quadrilateral is a parallelogram. AB→=2i^-j^-2k^ BC→=7j^-8k^ AB→.BC→=-7+16≠0…
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