My Math Forum  

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

Geometry Geometry Math Forum


Reply
 
LinkBack Thread Tools Display Modes
December 16th, 2008, 08:47 AM   #1
Newbie
 
Joined: Dec 2008

Posts: 2
Thanks: 0

Geometry-related proofs

Not using math more advanced that the 10th Grade (thus excluding the dot product) proof that:
a)The diagonals of a rhombus (a four-sided polygon in which every side has the same length) are perpendicular;
b)That connecting the medium points of consecutive sides of a quadrilateral will yield a parallelogram;
c)That if (x1;y1);(x2;y2); (x3;y3) and (x4;y4) are part of the same line then: (y2-y1)/(x2-x1)=(y3-y4)/(x3-x4).
Please make a step by step solution. Please help me
grizzlyjoker is offline  
 
December 16th, 2008, 01:52 PM   #2
Senior Member
 
Joined: Jul 2008

Posts: 895
Thanks: 0

Re: Geometry-related proofs

Quote:
Originally Posted by grizzlyjoker
Please make a step by step solution.
That means you want someone else to do all the work for you? Perhaps someone will, but I advise against it. Show what it is that you do not understand. For the first you need to understand congruence.
Dave is offline  
Reply

  My Math Forum > High School Math Forum > Geometry

Tags
geometryrelated, proofs



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
college geometry proofs :S mathforme Geometry 0 September 26th, 2011 01:04 AM
Geometry Proofs Neji Geometry 3 July 23rd, 2011 04:32 PM
Proofs chris99191 Algebra 4 March 21st, 2011 08:26 PM
Coxeter's “Geometry Revisited” vs. “Introduction to Geometry becko Math Books 2 December 29th, 2010 08:47 PM
Use of plane geometry in coordinate geometry problems cursed_mask Geometry 0 July 22nd, 2008 11:52 PM





Copyright © 2019 My Math Forum. All rights reserved.