A road climbs at an 8° angle with the horizontal. What is the grade of the road?


(Hint: Grade is the slope of the road represented as a percent)

Respuesta :

Answer:

grade of the road is 14.05 %

Step-by-step explanation:

given data

road climb angle = 8°

to find out

grade of the road

solution

grade of the road is an  incline or decline in a highway as ratio of rise

grade of the road is here express as

grade of the road  = tan θ   ....................1

put here angle  θ

grade of the road = tan 8

grade of the road =  0.140540

so grade of the road is 14.05 %

Answer:

14.05%.

Step-by-step explanation:

Please find the attachment.

We have been given that a road climbs at an 8° angle with the horizontal. What is the grade of the road?

We know that slope of a line is equal to rise over run.

We know that tangent relates opposite side of a right triangle with adjacent side. To solve our given problem, we will use tangent.

[tex]\text{tan}(8^{\circ})=\frac{\text{Rise}}{\text{Run}}[/tex]

[tex]\text{tan}(8^{\circ})=\text{Slope}[/tex]

[tex]\text{Slope}=0.140540834702[/tex]

Now, we multiply 0.140540834702 by 100 to convert into percentage.

[tex]0.140540834702\times 100\%=14.0540834702\%\approx 14.05\%[/tex]

Therefore, the grade of the road would be 14.05%.

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