Q&A #193

Teachers' Lounge Discussion: Trigonometry Ratios

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From: Loyd

To: Teacher2Teacher Public Discussion
Date: 2001081714:25:26
Subject: Re: angle of elevation

On 17 Aug 01 13:20:32 -0400 (EDT), Waqas Badar wrote: >In often maths problem,there written 'The anle of elevation'.What >is mean by elevation? > The angle of elevation is the angle that is made with the horizontal and and the line of sight that an object makes with your eye. Assume you are at A and looking at B: B /| / | / | / | A /----|C AC is the horizontal and AB is the line of sight from A to object B. Angle BAC is the angle of elevation. If you are at B and looking down, then Angle ABC is the angle of depression. One is the angle made when looking up (elevation) and the other is the angle made when looking down (depression).

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