Class 12 Three Dimensional Geometry · Mcq Single Correct1 Marksangles_between_lines
Class 12 Maths · Three Dimensional Geometry · Mcq Single Correct #19
Find the angle between 2x=3y=−z and 6x=−y=−4z.
✅ Step-by-Step Solution
Final Answer: Option (D): 90°
- Directions (1/2,1/3,−1),(1/6,−1,−1/4) have dot product 1/12−1/3+1/4=0.
Master Chapter 11: Three Dimensional Geometry
Practise interactive questions, flashcards, visual mind maps, and timed board tests for Three Dimensional Geometry.
← Previous Question
Find the reflection of P(1,6,3) in the line x=(y−1)/2=(z−2)/2.
Next Question →Find the foot from (1,8,4) to the line joining (0,−1,3) and (2,−3,−1).
More Practice Questions in Three Dimensional Geometry
Related Questions in Three Dimensional Geometry
Class 12 Three Dimensional Geometry · Mcq Single Correct
Find the foot of the perpendicular from (2,−3,4) to the y-axis.
Class 12 Three Dimensional Geometry · Mcq Single Correct
A line makes angles α,β,γ with the positive coordinate axes. Find cos 2α+cos 2β+cos 2γ.
Class 12 Three Dimensional Geometry · Mcq Single Correct
Find the distance of (α,β,γ) from the y-axis.
Class 12 Three Dimensional Geometry · Mcq Single Correct
Find direction cosines of (x−1)/2=(1−y)/3=(2z−1)/12.
Class 12 Three Dimensional Geometry · Mcq Single Correct
Find the acute angle between two distinct body diagonals of a cube.
Class 12 Three Dimensional Geometry · Mcq Single Correct
A line makes angles θ₁,θ₂,θ₃,θ₄ with the four body diagonals of a cube. Find Σ cos²θᵢ.