July 29th, 2012, 10:27 AM  #1 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 11,082 Thanks: 723  Split area
An "all integer" example: isosceles triangle; AB = AC = 442 ; BC = 84. D is on AB, 104 from B; E is on AC, 153 from C. Line DE = 77. Triangle ADE's area = half of triangle ABC's area. Code: A 289 338 E 77 D 153 104 B 84 C Calculate DE in terms of a,b,d Just for something to do 
July 31st, 2012, 01:01 PM  #2 
Senior Member Joined: Jul 2011 Posts: 118 Thanks: 0  Re: Split area 
July 31st, 2012, 01:18 PM  #3 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 11,082 Thanks: 723  Re: Split area
Looksee good! Mine: AD = f = a  d (given) angleBAC = u = 2ASIN[b/(2a)] (given) CE = e = [4afSIN(u)  bSQRT(4a^2  b^2)] / [4fSIN(u)] DE = SQRT[(a  e)^2 + f^2  2f(a  e)COS(u)] 

Tags 
area, split 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Dimensions of max area and area itself?  unwisetome3  Calculus  2  December 11th, 2012 07:13 PM 
equation of a split parabola  ray  Algebra  12  April 26th, 2012 10:30 AM 
Area of square with convex parts  area of circle  gus  Algebra  1  April 17th, 2011 05:25 PM 
area of eq. triangle vs. area of square  captainglyde  Algebra  1  February 19th, 2008 09:55 AM 