MCQ
Distance between A(4, 5 ,6) from origin O is:
- A$25\sqrt3$
- ✓$\sqrt{77}$
- C$3\sqrt{5}$
- DData Insufficient
✓
Answer
Correct option: B.
$\sqrt{77}$
Origin is O(0, 0, 0) and given point is A(4, 5, 6)
So, distance $=\sqrt{(4-0)^2+(5-0)^2+(6-0)^2}$
$=\sqrt{4^2+5^2+6^2}=\sqrt{77}$
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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