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 October 13th, 2009, 06:52 PM #1 Newbie   Joined: Oct 2009 Posts: 3 Thanks: 0 Finding the area of a square with right angle lines I have no idea how to answer this question Find the exact area of the large square below:
 October 13th, 2009, 07:12 PM #2 Senior Member   Joined: Mar 2007 Posts: 428 Thanks: 0 Re: Finding the area of a square with right angle lines Join the diagonal which will divide the length 4 into two parts. Extend the "5" line upwards [in your diagram] a further length "3". Join that point to the top left corner of the square. You now have a right triangle with two sides 8 and 4 and the diagonal of the square. Find the length of the diagonal and the side of the square [and area] from that.
 October 13th, 2009, 07:43 PM #3 Newbie   Joined: Oct 2009 Posts: 3 Thanks: 0 Re: Finding the area of a square with right angle lines I'm sorry, what does "join the diagonal" mean? Edit: okay so you mean to join the lines "5" and "3" together?
October 14th, 2009, 05:09 AM   #4
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Re: Finding the area of a square with right angle lines

Quote:
 Originally Posted by vnonwong I'm sorry, what does "join the diagonal" mean? Edit: okay so you mean to join the lines "5" and "3" together?
I should have been more clear. The diagonal of the square, top left to bottom right.

 Tags angle, area, finding, lines, square

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