Asked by Please Help

52. Liola drives 19 km up a hill that is at a grade of 15o. What horizontal distance, to the nearest tenth of kilometer, has she covered?
a.5.1 km
b.4.9 km
c.14.2 km
d.18.4 km
Answered by henry2,
cosA = x/r
cos 15 = x/19
X = 18.4 km.