A) 1300m
B) 1400 m
C) 1500m
D) 1600 m
Correct Answer: A
Solution :
[a] x=400 m, y=300 m, z= 1200 m \[r=\sqrt{{{x}^{2}}+{{y}^{2}}+{{z}^{2}}}\] \[=\sqrt{{{(400)}^{2}}+{{(300)}^{2}}+{{(1200)}^{2}}}\] \[=100\times \sqrt{16+9+144}\] \[=100\times \sqrt{169}=1300m\]You need to login to perform this action.
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