Distance of the point (3, 4, 5)

(A) √50

Explanation:

Let $P$ be the point whose coordinate is $(3,4,5)$ and $Q$ represents the origin. From distance formula we can write as

$P Q=\sqrt{(3-0)^{2}+(4-0)^{2}+(5-0)^{2}}$

$=\sqrt{9+16+25}$

$=\sqrt{50}$

$\therefore$ Distance of the point $(3,4,5)$ from the origin $(0,0,0)$ is $\sqrt{50}$ units. Hence, option (A) is the only correct choice.