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 ramp

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