My Math Forum  

Go Back   My Math Forum > High School Math Forum > Geometry

Geometry Geometry Math Forum

Thanks Tree1Thanks
  • 1 Post By skipjack
LinkBack Thread Tools Display Modes
February 12th, 2018, 10:47 PM   #1
Joined: Feb 2018
From: Afghanistan

Posts: 17
Thanks: 0


ABCD is a parallelogram and A(-b,-a) ,B(a,-3 ),C(5,a), D(-2,a) are given find the ratio of a/b
Please do step by step
Marva is offline  
February 12th, 2018, 11:16 PM   #2
Senior Member
Joined: Feb 2016
From: Australia

Posts: 1,741
Thanks: 609

Math Focus: Yet to find out.
Can you post your working?

Last edited by skipjack; February 13th, 2018 at 12:30 AM.
Joppy is offline  
February 13th, 2018, 12:30 AM   #3
Global Moderator
Joined: Dec 2006

Posts: 19,989
Thanks: 1855

AC has mid-point (5/2 - b/2, 0) and BD has mid-point (a/2 - 1, a/2 - 3/2).
As a parallelogram's diagonals bisect each other, these points must be the same.

What does that imply about the values of a and b?
Thanks from Marva
skipjack is offline  

  My Math Forum > High School Math Forum > Geometry

analytic geometry, parallelogram

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
A parallelogram brhum Geometry 4 April 15th, 2015 01:55 PM
Counterexample for Parallelogram coolikedat99 Geometry 7 February 10th, 2015 05:46 PM
divide a parallelogram Albert.Teng Algebra 4 July 13th, 2013 02:41 AM
Parallelogram problem hholbrook Algebra 2 October 14th, 2011 10:09 PM
A parallelogram Sara so Algebra 0 November 4th, 2010 04:18 AM

Copyright © 2018 My Math Forum. All rights reserved.