
Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion 
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August 12th, 2018, 11:36 AM  #1 
Member Joined: Aug 2018 From: Warrington Posts: 50 Thanks: 1  Working the height out
You want to get out of the sun and look for some shade. There are some trees by the side of the lake. You know you are just below 2 metres in height. Estimate the height of the tree. m This answer will be marked within a reasonable range. 
August 13th, 2018, 06:21 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 19,722 Thanks: 1806 
8.6 m

October 18th, 2018, 11:52 AM  #3 
Senior Member Joined: Feb 2016 From: Australia Posts: 1,721 Thanks: 599 Math Focus: Yet to find out. 
If you cloned yourself a pile of times and then had several clones stand on your shoulders, roughly how many clones would you need to touch the top of the tree?

October 18th, 2018, 12:03 PM  #4 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 13,315 Thanks: 935 
Measure your shadow and the tree's shadow: u = yours, v = tree's y = your height (which you know!) t = tree's height (?) y/u = t/v Go to town..... 
October 18th, 2018, 11:10 PM  #5 
Senior Member Joined: Apr 2014 From: UK Posts: 888 Thanks: 326 
I was thinking shadows too, but given the size of the meatsack's shadow in the picture, I concluded the tree must be enormous.


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height, length, working 
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