7. Find the value of x. Round to the nearest tenth of a unit. (2 points)
27°
work:
21
х
X =

Answer:
41.2
Step-by-step explanation:
By the alternate interior angles theorem, the angle of depression is congruent to the angle of elevation.
This means that tan(27)=21/x.
x(tan 27)=21
x=21/(tan 27), which is about 41.2