
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
April 11th, 2018, 05:18 AM  #1 
Member Joined: Apr 2018 From: On Earth Posts: 34 Thanks: 0  3D Shapes with algebra
I have tried doing this many times but I cannot find the distance from X to A. Please help!

April 11th, 2018, 05:44 AM  #2 
Senior Member Joined: May 2016 From: USA Posts: 1,122 Thanks: 464 
What are you studying? You have asked three questions that seem quite unrelated. In any case, your diagram is too small for me to read.

April 11th, 2018, 05:49 AM  #3 
Member Joined: Apr 2018 From: On Earth Posts: 34 Thanks: 0 
Bigger diagram

April 11th, 2018, 06:38 AM  #4 
Global Moderator Joined: Dec 2006 Posts: 19,511 Thanks: 1743 
The required area = the area of the "base" of the discarded cone = $\pi h^2\!$.

April 12th, 2018, 03:38 AM  #5 
Member Joined: Apr 2018 From: On Earth Posts: 34 Thanks: 0  
April 12th, 2018, 07:07 AM  #6 
Global Moderator Joined: Dec 2006 Posts: 19,511 Thanks: 1743 
The discarded cone is geometrically similar to the original cone so its height and base radius are equal. Its height is given as h, so its base radius is h.


Tags 
algebra, shapes 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Are 3D shapes layered 2D shapes?  botperson  Geometry  2  December 12th, 2016 09:39 AM 
Shapes of graphs  andranne  PreCalculus  2  November 27th, 2015 01:05 PM 
Shapes within a circle  SHRock  Algebra  3  August 19th, 2010 01:32 PM 
shapes  mikeportnoy  Applied Math  0  September 27th, 2008 07:59 AM 