A wheelchair access ramp has an angle of elevation of 18°. If the ramp reaches the top of a 26 inch high porch, how long is the
1 answer:
Draw diagarm
we want to know the hyptohuse
use cos
cos(x)=opositeside/hhyptohuse
hypothuse=length of ramp
cos(18°)=26/?
times both sides by ?
?cos(18°)=26
divide both sides by cos(18°)
?=26/(cos(18°))
use your calculator
?=27.338in
the ramp is about 27in
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