_____ is the angle between the normals to two planes.

Category: Questions_____ is the angle between the normals to two planes.
Editor">Editor Staff asked 11 months ago

_____ is the angle between the normals to two planes.
 
(a) Normal between the planes
 
(b) The angle between the planes
 
(c) Tangent between the planes
 
(d) Distance between the planes
 
I have been asked this question during a job interview.
 
The question is from Three Dimensional Geometry in section Three Dimensional Geometry of Mathematics – Class 12
NCERT Solutions for Subject Clas 12 Math Select the correct answer from above options 
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1 Answers
Editor">Editor Staff answered 11 months ago

Right choice is (b) The angle between the planes
 
Explanation: The angle between the normals to two planes is called the angle between the planes. A trigonometric identity, cosine is used to find the angle called ‘θ’ between two planes.