SOLUTION: A homeowner is to construct a ramp to his frontdoor to make it wheelchair accessible. How long is the ramp if the door is 4ft above and the angle of elevation is 20°?

Algebra ->  Pythagorean-theorem -> SOLUTION: A homeowner is to construct a ramp to his frontdoor to make it wheelchair accessible. How long is the ramp if the door is 4ft above and the angle of elevation is 20°?      Log On


   

Question 1202525: A homeowner is to construct a ramp to his frontdoor to make it wheelchair accessible. How long is the ramp if the door is 4ft above and the angle of elevation is 20°?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Draw the representing right triangle and label the parts.
.
.
You will decide how to use sine function?













r, ramp length
sin%2820%29=4%2Fr