# Math Help - rocket launch

1. ## rocket launch

When watching a rocket launch, Nema is 0.8Km closer to the launching pad than Joel is. When the rocket disappears from view, its angle of elevation for Nema is 36.5* and for Joel is 31.9*. How high is the rocket at this point?
thank you in advance for any help
with a diagram will be more appreciated~~~

2. Originally Posted by ives
When watching a rocket launch, Nema is 0.8Km closer to the launching pad than Joel is. When the rocket disappears from view, its angle of elevation for Nema is 36.5* and for Joel is 31.9*. How high is the rocket at this point?
thank you in advance for any help
with a diagram will be more appreciated~~~

call the distance between Nema and Joel x, and call the height of the rocket at the said point, y.

now think trig ratios, in particular, trig ratios that relates x and y.

what can you come up with?

3. thanks....
i just want to check if the answer in the back is correct.
and finnally, teacher confirmed it.