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°?

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) (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

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