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August 22nd, 2018, 02:06 PM  #1 
Member Joined: Aug 2018 From: Nigeria Posts: 73 Thanks: 2  Trigonometry:Angle of elevation&depression
ANYBODY, HELP PLEASE.... A ladder 5m long leans against a vertical wall at an angle of 70 degrees to the ground. Find and correct to 2 s.f. 1. the new angle which the ladder makes to the ground, 2. the distance the ladder slipped back on the ground from its original position. Note: when solving, there must be diagrammatic expression. Last edited by skipjack; August 22nd, 2018 at 05:49 PM. 
August 22nd, 2018, 02:07 PM  #2 
Senior Member Joined: Sep 2015 From: USA Posts: 2,529 Thanks: 1389 
here's an idea... learn the material and do your own homework 
August 22nd, 2018, 03:19 PM  #3 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 521 Math Focus: Calculus/ODEs 
Apparently the base of the ladder slips farther from the wall, but you've provided no information about that.

August 22nd, 2018, 05:53 PM  #4 
Global Moderator Joined: Dec 2006 Posts: 20,919 Thanks: 2203 
In its current form, the question seems incomplete, as it isn't clear why it refers to "the new angle" and "its original position" without explaining which position of the ladder the angle of 70 degrees relates to. Also, the problem doesn't state whether the ground is horizontal. 
August 22nd, 2018, 09:35 PM  #5 
Member Joined: Aug 2018 From: Nigeria Posts: 73 Thanks: 2 
Hey..this is not my assignment...I am trying to learn trigonometry in all aspectduring our holiday and i need professional help

August 22nd, 2018, 09:49 PM  #6 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 521 Math Focus: Calculus/ODEs  

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elevationanddepression, trigonometryangle 
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