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| October 13th, 2009, 07:52 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:  |
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| October 13th, 2009, 08:12 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.
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| October 13th, 2009, 08:43 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? |
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| October 14th, 2009, 06:09 AM | #4 | |
| Senior Member Joined: Mar 2007 Posts: 428 Thanks: 0 | Re: Finding the area of a square with right angle lines Quote:
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| angle, area, finding, lines, square |
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