+0  
 
0
109
1
avatar

Anna has a 10-foot long ladder that she is going to rest against a vertical wall along the bottom of a window-sill that is 8.5 feet above the ground. The safety code recommends that the angle the ladder makes with the ground be no greater than 65°. Will the ladder be safe resting on the window sill?

Guest Mar 2, 2018

Best Answer 

 #1
avatar+12266 
+2

The ladder is the hypotenuse of a right triangle.  10ft

 

The leg opposite the angle in question is 8.5 ft

 

arcsin (8.5/10) = 58.2 degrees     It is OK!

ElectricPavlov  Mar 2, 2018
edited by Guest  Mar 2, 2018
Sort: 

1+0 Answers

 #1
avatar+12266 
+2
Best Answer

The ladder is the hypotenuse of a right triangle.  10ft

 

The leg opposite the angle in question is 8.5 ft

 

arcsin (8.5/10) = 58.2 degrees     It is OK!

ElectricPavlov  Mar 2, 2018
edited by Guest  Mar 2, 2018

25 Online Users

New Privacy Policy (May 2018)
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  Privacy Policy