Single Answer MCQ
Q-00103882
What is the distance between the points P(1, 2, 3) and Q(4, 6, 9)?
1
5
2
8
3
7
4
6
Answer and Solution
Answer
B. 8
Solution:
The distance PQ = sqrt((4-1)^2 + (6-2)^2 + (9-3)^2) = sqrt(3^2 + 4^2 + 6^2) = sqrt(9 + 16 + 36) = sqrt(61) ≈ 7.81, which is closest to 8.
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