Consider the picture as augmented below. The guide line has two parts, labeled L1 and L2, for the
part of the guide line in each corridor. The angle is labeled x. Identify a right triangle and use it to write an equation giving L1 as a function of x. (Note that L1 is not in general the same as the length
of the ladder)

a. L1=4.209 sin x
b. L1 = 4.209 cos x
c. L1 = 4.209/sin x
d. L1=4.209/cos x
e. LI=6 sinx
f. L1 = 6 cos x
g. L1= 6/sin x
h. L1 = 6/cos x