The staircase

The staircase has a total height of 3.6 m and forms an angle of 26° with the horizontal. Calculate the length of the whole staircase.

Correct result:

x =  8.2122 m

Solution:

h=3.6 m α=26∘  sin⁡α=h:x  x=h/sin⁡α∘=h/sin⁡26∘ =3.6/sin⁡26∘ =3.6/0.438371=8.212=8.2122 m

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