Question 519331
A skateboard ram inclines at an angle of 20 degrees.
 If the ramp has a run of 4 meters, what is the length of the ramp?
:
You solve this using the cosine of 20 degrees, let r = the length of the ramp
cos(20) = {{{4/r}}}
r = {{{4/cos(20)}}}
r = 4.2567 meters