Web It
Chapter 8
8.1 1
For an interactive site that explains how to find the perimeter of rectangles and squares, go to link:
8.1 2
Want to try a puzzle involving perimeters? Use the hardest category and make it challenging! Every time you get it right, you get a piece of the puzzle at link:
8.1 3
For the perimeter (circumference) of a circle, visit the interactive website at link:
8.2 1
For a lesson on finding the areas of rectangles and squares, including a quiz that will tell you if your answer is correct, visit link:
8.2 2
For a PowerPoint presentation dealing with the areas of rectangles and squares, go to link:
powerpoints/elementary/winapowers.ppt
8.2 3
To see a demonstration of how the formula for the area of a triangle is obtained (similar to the one in the text), visit link:
8.2 4
For a simple lesson using the formula for the area of a parallelogram, with interactive problems, try link:
8.2 5
If you want to make your own parallelogram and discover what the area of a parallelogram should be, try link:
8.2 6
To see how the area of a trapezoid is derived, go to link:
8.2 7
For an excellent lesson detailing the terminology associated with circles (radius, diameter, etc.) as well as the calculation of the area of a circle, with exercises that contain applications and answers, go to link:
8.3 1
To learn about the volumes of rectangular and other solids, try link:
8.3 2
For a well illustrated lesson on finding the volume of a rectangular solid, visit link:
8.3 3
To learn how to find the volume of a rectangular solid using an interactive approach, go to link:
8.3 4
For a brief lesson with a video tutorial showing how to find the volume of a rectangular solid, try link:
8.3 5
To try an interactive lesson (press Start; they give you the radius and height of the cylinder and you enter the answer), go to link:
8.3 6
For a lesson on finding the volume of a cylinder, go to link:
8.3 7
If you want a calculator to do the work for you (enter the radius and the height), there is one at link:
8.3 8
For a very brief lesson dealing with the volume of a sphere (press Start; they give you a diameter, you enter the answer), visit link:
8.3 9
For the usual interactive lesson on finding the area of a cone (press Start; you are given the diameter and height of the cone, enter the answer), try link:
8.4 1
For a detailed lesson on angles, visit link:
8.4 2
If you want to select a related topic, try link:
8.4 3
For an excellent lesson on how to classify and measure angles, log on to link:
8.4 4
For an animated version dealing with different types of angles, go to link:
8.4 5
For a lesson on complementary and supplementary angles, go to link:
8.4 6
For an animated presentation of complementary and supplementary angles, visit link:
8.4 7
For a lesson on how angles can be classified (by angles or by sides, you choose), try link:
8.4 8
For a well illustrated, animated lesson dealing with the classification of angles, visit link:
8.4 9
For a procedure on how to find the measure of the third angle in a triangle, try link:
8.4 10
For an animated version of the fact that the angles in a triangle add to 180 degrees, see link:
8.4 11
To see a proof that the sum of the measures of the angles in a triangle is 180 degrees, visit link:
8.5 1
For a good lesson discussing square roots, try link:
8.5 2
To continue the lesson, visit link:
8.5 3
Want to try a game finding square roots? Go to link:
8.5 4
For an old fashioned table of square roots (up to 100), visit link:
8.5 5
For an interactive lesson detailing how square roots work, go to link:
8.5 6
For everything you ever wanted to know about Pythagoras, try link:
8.5 7
For an excellent lesson on the Pythagorean theorem, with explanations, examples, and procedures on how to use the theorem, visit link:
8.5 8
If you want to see many proofs of the theorem, point your browser to link: