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We are all going to use the wiki to discuss problems assigned. Look below and you will find the problem that you are responsible to post the first answer for based on your Aquinas e-mail address. It is NOT o.k. to just write "I don't get it". Start by typing the problem (click on edit to start) word for word from the book. You Post your answer as if it were a test question ( You would not leave those blank you would take a stab at it!), HOW you got it (list specific page references and show work) and WHY you did that way. The rest of the class will make comment on at least 3 other problems, corrections, and post their thoughts below your original response.
RESPONSES BY 10/10
I came on to respond but nothing to respond to! Thursday at 9:52pm [SLewis]
Section 4.4
Hello Everybody!! It's chris!
I was looking at the shapes. THere are five shapes and I have to answer which of them can be used to tile an entire plane.
be tiled.
I'm pretty sure the star can't be tiled, but I could definitely be wrong! Any input?
Yeah the text does mention the triangle being able to be made into more triangle and I assume you can eventually close it. The only thing about the star is the gaps are larger than the the point the vertices make so I have to agree that you are unable to tile them~Uraqtinvu
3)[JEH 003]
4) [ nmg002]
find symmetry.
I am not sure what they mean by rigid but the honey comb one is the only one that has rotational symmetry so I don't think it matters what rigid means. I think that they wanted to know the angle of rotation for symmetry, it looks like 45 degrees for the honeycomb. FAB
6)[CSV001]
Here's Chris again =]
I don't have a scanner available to show you all, but here's my best despriction
that's allowed
It does says in the book something about it being impossible to make a T-arrangement with a 5-unit.~Uraqtinvu
SMD001:Comment: Yeah I don't think that it can have a pointed stem. I think you would need one more piece to make it a full stem?

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Source: http://roofing.about.com/od/Maintaining-Your-Roof/a/The-Who-What-And-Why-Of-Preparing-Your-Roof-For-Winter.htmhttp:// roofing.about .com/od/Maintaining-Your-Roof/a/The-Who-What-And-Why-Of-Preparing-Your-Roof-For-Winter.htm

Snow, Ice, and winds can wreak havoc on your roof and your home or business. Roofing problems can be exacerbated in the winter. Roofs over 20 years over are more susceptible but anyone's roof can be a problem over the winter. Minor leaks can become major cave-ins that can cost you thousands of dollars. Now is the time to inspect and care for your roof.
Inspecting your roof
Climb up on your roof and look around the chimney, around skylight and edges. Look for loose materials or cracked shingles or cracks anywhere. You may need to sweep off pine needles or leaves and clean out your gutters.
When you are on your roof, look for shingle granules, which look like sand. If you see these, you have serious wear on your roof.
If you have any leaks, this is the time to get them fixed. A minor leak can turn to a major leak through the harsh winter months. It's also much easier to fix the leaks before the snow or bitter cold hits.
Inspect the interior of your home
Get into your attic and look for areas that are sagging. Inspect your ceilings for roof leaks, water damage, dark spots or any light showing from outside. Inspect for fungus, rot, damp areas or woodworm.
Ice Damming
A clogged gutter can be a serious winter problem. Ice dams can form which can cause damage to the interior of your home as well as roof damage.
Ice dams can occur when outside temperatures are cold enough for water to freeze. The area close to the home melts from the warmth of the home while the outside layer continues to freeze. The melting water can't reach the gutter and begins to back up. The pressure causes the melting water to enter the home in every area it can find. This can cause extensive damage to the interior of your home.
The first prevention is to clean those gutters. Get the pine needles and fall leaves out. Ice and water shields can be installed under the shingles. Heat tape can be installed in your gutters. When the snow comes, rake the snow off the edge of the roof.
Call a professional
The best way to take care of your roof is to call a professional. Barton Roof will inspect for you and help you with your roofing needs.
Home improvement news brought to you by bartonroof.com
Source: http://roofing.about.com/od/Maintaining-Your-Roof/a/The-Who-What-And-Why-Of-Preparing-Your-Roof-For-Winter.htm