From his base camp at the equator, Bruce hiked on flat terrain $13$ kilometers due north, then $24$ km due east, and finally $6$ km due south. Using a direct route, how many kilometers would Bruce be from base camp?  (Assume the Earth is flat for this problem.)
<|im_start|>system
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<|im_start|>user
From his base camp at the equator, Bruce hiked on flat terrain $13$ kilometers due north, then $24$ km due east, and finally $6$ km due south. Using a direct route, how many kilometers would Bruce be from base camp?  (Assume the Earth is flat for this problem.)
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
25 \, \text{km}
From his base camp at the equator, Bruce hiked on flat terrain $13$ kilometers due north, then $24$ km due east, and finally $6$ km due south. Using a direct route, how many kilometers would Bruce be from base camp?  (Assume the Earth is flat for this problem.)
train