
Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion 
 LinkBack  Thread Tools  Display Modes 
August 14th, 2018, 11:07 AM  #1 
Member Joined: Aug 2018 From: Warrington Posts: 50 Thanks: 1  Perimeter
Another tent has the perimeter of 7.2 metres. If the width is 1.3 metres, what is the length? 
August 14th, 2018, 11:54 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,274 Thanks: 1959 
The semiperimeter is 3.6 m, so the length is (3.6  1.3) m, i.e. 2.3 m.

August 14th, 2018, 12:32 PM  #3 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 13,954 Thanks: 987  
August 14th, 2018, 12:54 PM  #4 
Member Joined: Aug 2018 From: Warrington Posts: 50 Thanks: 1 
I don't know why I am having problems with these problems but can't get my head around it

August 14th, 2018, 01:33 PM  #5 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 13,954 Thanks: 987  Code: A 10 B 6 6 D 10 C It's area is 6 * 10 = 60 sq. units; ok? (notice that * is now used as multiplication sign...NO longer x) It's perimeter is 6 + 10 + 6 + 10 or 2*(6 + 10) = 2*16 = 32; ok? IF you're told width = 6 and perimeter = 32, length L is calculated this way: L + L + 6 + 6 = 32 2*L = 32  6  6 2*L = 32  12 2*L = 20 L = 20/2 = 10 ; ok? Clear? Any questions? 

Tags 
perimeter, perimetre 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Perimeter?  Opposite  Geometry  2  May 4th, 2017 04:19 PM 
perimeter triangle  Nathalia  Geometry  1  August 28th, 2016 07:58 PM 
area and perimeter  tsl182forever8  Algebra  1  February 28th, 2012 11:58 PM 
perimeter  najaa  Algebra  1  December 1st, 2011 06:14 AM 
Perimeter  ExIsTaNcE  Algebra  9  January 24th, 2010 06:52 AM 