# Homework Hints 7-2

### Note: Homework Hints are given only for the Level 1 and Level 2 problems.

However, as you go through the book be sure you look at all the examples in the text. If you need hints for the Level 3 problems, check some sources for help on the internet (see the LINKS for that particular section. As a last resort, you can call the author at (707) 829-0606.

On the other hand, the problems designated “Problem Solving” generally require techniques that do not have textbook examples.

There are many sources for homework help on the internet.

Algebra.help
Here is a site where technology meets mathematics. You can search a particular topic or choose lessons, calculators, worksheets for extra practice or other resources.
http://www.algebrahelp.com/

Dr. Math is a registered trademark. This is an excellent site at which you can search to see if your question has been previously asked, or you can send your question directly to Dr. Math to receive an answer.
http://mathforum.org/dr.math/

Quick Math
This site provides online graphing calculators. This is especially useful if you do not have your own calculator.
http://www.quickmath.com/

The Math Forum @ Drexel
This site provides an internet mathematics library that can help if you need extra help. For additional homework help at this site, click one of the links in the right-hand column.
http://mathforum.org/

Problems 1-8
There are many problems throughout the text labeled IN YOUR OWN WORDS. Just relax; do not be afraid to give your opinion. For the most part, these questions do not have “right” or “wrong” answers. You should spend about five minutes in answering each of these questions.
Problems 9-10
Count the number of sides and then see Figure 7.24 for the correct terminology.
Problems 11-14
See the box labeled “Classifications of Quadrilaterals.”
Problems 15-16
Remember that complementary angles have measures that add up to 90 degrees, and supplementary angles have measures that add up to 180 degrees.
Problems 17-20
Remember that complementary angles have measures that add up to 90 degrees, and supplementary angles have measures that add up to 180 degrees.
Problems 21-24
Use Example 2 for the correct classifications.
Problems 25-32
Use Example 1 to help you find the correct angles, and then use Example 3 to show you how to classify the angle.
Problems 33-34
Use Example 2 for the correct classifications.
Problems 35-39
See the box labeled “Classifications of Quadrilaterals.” Draw the named quadrilateral for each problem, and then use your model to answer the questions.
Problems 40-45
See Figure 7.18. You will need a compass and a protractor for these problems.
Problems 46-51
See Example 6.
Problems 52-57
See Example 5.
Problem 58
Yes, you are expected to actually perform this little activity. It will convince you beyond a shadow of a doubt. The results of this problem are stated in the next section.