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
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
QY = 452 + 242 = 2025 + 576
= 2601
QY = \(\sqrt{2601}\)
= 51
Source: Myschool Past Questions Archive (Record #32159)