The angle between line x=y=z and the plane x+y+z=1 is:
The angle between line x=y=z and the plane x+y+z=1 is:
- A. sin⁻¹(1/√3)
- B. sin⁻¹(1)
- C. 0°
- D. 90°
Answer: D) 90°
Explanation: Line DRs: 1, 1, 1. Plane Normal DRs: 1, 1, 1. Since the line direction is proportional to the normal, it is perpendicular to the plane, so angle is 90°.
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