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 i dont get this

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According to the Americans With Disabilities Act, a ramp can rise no more than 1 ft for every 12 ft of horizontal distance. To the nearest tenth degree what is the maximum angle that the ramp can form with the ground?

 

arctan=(1/12) but i still dont get it

 Jun 2, 2014

Best Answer 

 #2
avatar+118723 
+5

It is not arctan=(1/12) that doesn't make sense.

It is arctan(1/12) = the angle that you want.

It is either 

tan(angle)=ratio

ot

arctan(raio)=angle

DRAW A PICTURE OF THE TRIANGLE FIRST - this will help you understand.

 Jun 2, 2014

2+0 Answers

 #1
avatar+130511 
+5

You have the correct set up....just make sure your calculator is in degree mode......your answer will reflect some angle......

 

 Jun 2, 2014
 #2
avatar+118723 
+5
Best Answer

It is not arctan=(1/12) that doesn't make sense.

It is arctan(1/12) = the angle that you want.

It is either 

tan(angle)=ratio

ot

arctan(raio)=angle

DRAW A PICTURE OF THE TRIANGLE FIRST - this will help you understand.

Melody Jun 2, 2014

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