User Name Remember Me? Password

 Geometry Geometry Math Forum

April 10th, 2011, 02:01 AM   #1
Newbie

Joined: Apr 2011

Posts: 9
Thanks: 0

geometry

SOME HELP
Attached Images 4.PNG (6.5 KB, 118 views) April 10th, 2011, 06:32 AM #2 Newbie   Joined: Apr 2011 Posts: 6 Thanks: 0 Re: geometry 1) angle CAB = angle CBD therefore the two triangles are similar, triangle CAB & triangle CBD the ration of the sides must be equal 2) Lets AD = x, then AC = (x+3) 3) ( BC / AC ) = ( DC / BC) ( 5 / (x+3)) = ( 3 / 5 ) cross multiple: 3x + 9 = 25 x = (25 - 9) / 3 x= 5.333 answer is C) 5 1/3 April 10th, 2011, 06:41 AM   #3
Math Team

Joined: Dec 2006
From: Lexington, MA

Posts: 3,267
Thanks: 408

Re: geometry

Hello, khalidmustafa06!

Quote:
 [color=beige]. . [/color] Code:  B * * @|* * | * * 4| * 5 * | * * | @ * A * - - - - - - - - * - - * C D 3 April 13th, 2011, 06:30 PM #4 Newbie   Joined: Apr 2011 Posts: 3 Thanks: 0 Re: geometry Measure of a tangent is opposite over adjacent angles. You will need a scientific or graphing calculator. Here's an example: I \ I \ I_ \ I_I__\ The angle to the right of the right angle is the example I will use. I will call it 'A'. TAN A=opposite/adjacent. The number of the opposite and adjacent sides should be given. This is a ratio. TAN A = ratio. Divide by TAN (hit TAN -1: you will have to use the 2nd key) on both sides. You will then have: A = TAN-1 (multiplied by) ratio. YOU MUST HAVE A CALCULATOR TO DO THIS PROBLEM. Repeat this for the other angle you need. Then add your results, giving you the final measure of the large angle. Tags geometry Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post PlzzHelp Geometry 5 March 15th, 2014 09:47 PM becko Math Books 2 December 29th, 2010 08:47 PM tobymac Geometry 1 July 29th, 2009 02:48 PM baxx45 Geometry 1 January 12th, 2009 09:19 AM cursed_mask Geometry 0 July 22nd, 2008 11:52 PM

 Contact - Home - Forums - Cryptocurrency Forum - Top      