A wheelchair ramp needs to be pitched at 8 degrees. If the ramp is to access an 18-inch step to a door what will be the length of the ramp to the nearest inch?

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A wheelchair ramp needs to be pitched at 8 degrees If the ramp is to access an 18inch step to a door what will be the length of the ramp to the nearest inch Ple class=

Respuesta :

Answer : The length of the ramp to the nearest inch will be, 129.49

Step by step explanation :

As we know that,

[tex]\sin \theta =\frac{Perpendicular}{Hypotaneous}[/tex]

In the given image, the value of [tex]\theta[/tex](the angle between the base and the hypotaneous) is [tex]8^o[/tex] and the value of perpendicular is 18 inch.

Now we have to calculate the value of the hypotaneous by using above expression, we get

[tex]\sin \theta =\frac{Perpendicular}{Hypotaneous}[/tex]

[tex]\sin 8^o=\frac{18inch}{Hypotaneous}[/tex]

[tex]0.139=\frac{18inch}{Hypotaneous}[/tex]

[tex]Hypotaneous=\frac{18inch}{0.139}[/tex]

[tex]Hypotaneous=129.49inch[/tex]

The hypotaneous is equal to the length of the ramp = 129.49 inch

Therefore, the length of the ramp to the nearest inch will be, 129.49

Ver imagen BarrettArcher