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Question Practice

What geometric rule describes the relationship between direction cosines?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 12
Mathematics
Mathematics Part - II
Three Dimensional Geometry
Question Bank

What geometric rule describes ...

Single Answer MCQ
Q-00078294

What geometric rule describes the relationship between direction cosines?

1

They must be equal

2

They cannot be negative

3

They add to 1

4

The sum of squares equal to 1

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Students who asked this also explored

Continue with nearby questions to strengthen the same chapter concept while you still have the context fresh in mind.

Q1.

What are the direction cosines of a line?

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Q2.

If a line makes angles α, β, and γ with the x, y, and z axes, respectively, what is true about the direction cosines l, m, n?

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Q3.

What do direction ratios represent for a line in three-dimensional space?

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Q4.

What happens to the direction cosines if the direction of a line is reversed?

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