Asha walks 20 m north, then 21 m east. How far is she from her start in a straight line?
A29 m
B41 m
C31 m
D27 m
Answer & Solution
Correct answer: A. 29 m
The two walks are at right angles, so the distance squared is 400 plus 441, which is 841, and the distance is 29 m.
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