A girl walks 45 meters in the direction 050o from a point Q to a point X. She then walks 24 meters in the direction 140o from X to a point Y. How far is she then from Q?
-
A.
69m -
B.
57m -
C.
51m -
D.
21m
Correct Answer: Option C
Explanation
QY = 452 + 242 = 2025 + 576
= 2601
QY = (sqrt{2601})
= 51