My Math Forum  

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

Algebra Pre-Algebra and Basic Algebra Math Forum


Reply
 
LinkBack Thread Tools Display Modes
December 21st, 2012, 04:00 PM   #1
Senior Member
 
Joined: Dec 2012

Posts: 148
Thanks: 0

triangle and circle

A circle inscribed into a triangle ABC, sides of triangle ABC are a, b & c. The tangent points are D, E, & F. Find the sides of triangle DEF.
My answer is




Can anyone check this?
tahir.iman is offline  
 
December 21st, 2012, 08:42 PM   #2
Math Team
 
Joined: Oct 2011
From: Ottawa Ontario, Canada

Posts: 14,274
Thanks: 1023

Re: triangle and circle

DEFINITELY not correct. Try that on ABC = 3-4-5 triangle.
Denis is offline  
December 21st, 2012, 09:34 PM   #3
Senior Member
 
Joined: Dec 2012

Posts: 148
Thanks: 0

Re: triangle and circle

Ok. Where did I do wrong?
tahir.iman is offline  
December 22nd, 2012, 02:42 AM   #4
Math Team
 
Joined: Oct 2011
From: Ottawa Ontario, Canada

Posts: 14,274
Thanks: 1023

Re: triangle and circle

Quote:
Originally Posted by tahir.iman
Ok. Where did I do wrong?
Somewhere on the sheet(s) of paper you were using to do your calculations
Denis is offline  
December 22nd, 2012, 03:22 AM   #5
Senior Member
 
Joined: Dec 2012

Posts: 148
Thanks: 0

Re: triangle and circle

check this and etc.
tahir.iman is offline  
December 22nd, 2012, 11:00 AM   #6
Math Team
 
Joined: Oct 2011
From: Ottawa Ontario, Canada

Posts: 14,274
Thanks: 1023

Re: triangle and circle

Correct! Did you switch fron cheap Russian vodka to Canadian Club whiskey?

Made up program to search for integer cases: only found this primitive case(keeping a<1000):
a=350, b=625, c=625 ; area = 105000
d = 210, e=210, f=252 ; area = 21168

My Xmas gift to you
Denis is offline  
December 23rd, 2012, 05:50 AM   #7
Senior Member
 
Joined: Dec 2012

Posts: 148
Thanks: 0

Re: triangle and circle

Quote:
Originally Posted by Denis
Correct! Did you switch fron cheap Russian vodka to Canadian Club whiskey?

Made up program to search for integer cases: only found this primitive case(keeping a<1000):
a=350, b=625, c=625 ; area = 105000
d = 210, e=210, f=252 ; area = 21168

My Xmas gift to you
Thanks. And no, I mixed Russian vodka with Irish beer.
tahir.iman is offline  
December 23rd, 2012, 08:53 AM   #8
Math Team
 
Joined: Oct 2011
From: Ottawa Ontario, Canada

Posts: 14,274
Thanks: 1023

Re: triangle and circle

Quote:
Originally Posted by tahir.iman
And no, I mixed Russian vodka with Irish beer.
Keep that up and you'll have 1 + 1 = 3
Denis is offline  
December 23rd, 2012, 06:31 PM   #9
Senior Member
 
Joined: Dec 2012

Posts: 148
Thanks: 0

Re: triangle and circle

Quote:
Originally Posted by Denis
Quote:
Originally Posted by tahir.iman
And no, I mixed Russian vodka with Irish beer.
Keep that up and you'll have 1 + 1 = 3
Evangelist monks tell every day, 1+1+1=1, so what they drink, or/and smoke. I hope not red wine with red bull, because I love it, and I don't want to come crazy contradictions.
tahir.iman is offline  
Reply

  My Math Forum > High School Math Forum > Algebra

Tags
circle, triangle



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Circle, Triangle, Symmetry tahirimanov Algebra 14 December 24th, 2013 10:43 AM
Acute triangle and circle john1818 Algebra 0 September 24th, 2013 04:37 AM
circle and triangle chusti Algebra 3 April 16th, 2013 01:06 AM
Max. area of a triangle in a circle tiba Algebra 4 June 20th, 2012 11:45 AM
Circle and Triangle winner Algebra 1 January 13th, 2011 10:38 PM





Copyright © 2019 My Math Forum. All rights reserved.