Distance between A(4, 5 ,6) from origin O is: - Vidyadip

MCQ

Distance between $A(4, 5 ,6)$ from origin $O$ is:

A
$25\sqrt3$
✓
$\sqrt{77}$
C
$3\sqrt{5}$
D
Data Insufficient

✓

Answer

Correct option: B.

$\sqrt{77}$

Origin is $O(0, 0, 0)$ and given point is $A(4, 5, 6)$
So, distance $=\sqrt{(4-0)^2+(5-0)^2+(6-0)^2}$
$=\sqrt{4^2+5^2+6^2}$
$=\sqrt{77}$

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