Question

The perpendicular distance of (3, 4, 5) from the Z-axis is

• A. $\sqrt { 26 }$
• B. 5
• C. $\sqrt { 17 }$
• D. $\sqrt { 10 }$

Answer 1

Answer: (B)

5

Answer 2

The perpendicular distance to Z -axis

= $\sqrt { x ^ { 2 } + y ^ { 2 } } = \sqrt { 9 + 16 } = 5$