Runners in a long distance race start out going 8 kilometers east and then head north for the remainder of the race. The finish line is 10 kilometers from the starting line. How far did the runners travel north?

A) 2 km
B) 6 km
C) 10 km

Question

Runners in a long distance race start out going 8 kilometers east and then head north for the remainder of the race. The finish line is 10 kilometers from the starting line. How far did the runners travel north?

A) 2 km
B) 6 km
C) 10 km

anonymous · Answer

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Use Pythagoras theorem to find NE.

anonymous · Answer

so it will be 10

anonymous · Answer

No.$$10^{2}=8^{2}+s ^{2}$$
Calculate s.