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Write the Length of the Perpendicular Drawn from the Point P(3, 5, 12) on X-axis.

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Question

Write the length of the perpendicular drawn from the point P(3, 5, 12) on x-axis.

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Solution

The distance of the point P(3, 5, 12) from x-axis is given by 

\[\sqrt{5^2 + \left( 12 \right)^2}\]
\[ = \sqrt{169}\]
\[ = 13\]

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Chapter 28: Introduction to three dimensional coordinate geometry - Exercise 28.4 [Page 22]

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R.D. Sharma Mathematics [English] Class 11
Chapter 28 Introduction to three dimensional coordinate geometry
Exercise 28.4 | Q 6 | Page 22

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