Mastering the Basics - In this section, you will learn to classify triangles according to their angles and sides.
Click on the first link in your webquest to begin completing your worksheet.
1) What is the sum of the angles of every triangle? ___________________
2) A triangle in which all the sides have the same length is called an ___________________ triangle.
3) A triangle with two sides having the same length is called an _______________________ triangle.
4) A triangle in which none of the sides have the same length is called a ________________ triangle.
5) A triangle with a 90o angle is called a __________________ triangle.
6) A triangle with an angle greater than 90o is called an ______________________ triangle.
7) A triangle in which none of the angles are greater than 90o is called an ______________ triangle.
8) A triangle in which all of the angles are congruent to each other is called an ___________________ triangle.
Go to the next link (#2) to answer the following question.
9) How many triangles were you able to correctly classify in 60 seconds by their angles? ______
10) Can you beat your own record? How many did you correctly classify this time? ___________
Go to the next link (#3).
11) How many triangles were you able to correctly classify in 60 seconds by their sides? ______
12) Try it again! How many this time? ___________
Go to the next link (#4).
13) This one will slow you down! How many third angles were you able to correctly identify in 60 seconds?_________________
14) Try it again! How many? _______________
Mastering the Pythagorean Theorem
In this section you will learn about a powerful formula for working with right triangles and practice using it to solve practical problems.
Go to the next link (#5).
15) The Pythagorean Theorem is a powerful tool for finding the length of the third side of a right triangle when the other two sides are given. The Pythagorean Theorem (formula) is _________________________________ where A and B are the legs of the triangle and C is the hypotenuse ( always directly across from the right angle).
16) Use the Pythagorean Theorem to find the length of the third side of the right triangle described below. Round your answer to the nearest tenth.
One side is 7, the second side is 12, how long is the hypotenuse?
72 + 122 = C2
Now you try it. One side is 8, the second side is 9. How long is the hypotenuse? ____________
Go to the next link (#6).
17) Did you solve the ladder problem? Enter the answer here. ______________________
Go to the next link (#7).
18) How far did you have to throw that baseball? __________________
Solving the Mysterious Bermuda Triangle
In the final section you will research the Bermuda Triangle and offer a logical explanation for a mysterious disappearance.
Go to the next link (#8).
19) What has happened in the Bermuda Triangle that has given it a mysterious reputation?
20) Give three possibilities to explain why so many ships have disappeared in this area.
Go to the next link (#9).
21) Although the area is called the Bermuda Triangle, there is disagreement about the exact location and shape. Using the map on this link give the location of the apexes of the triangle.
22) When classified by its sides, what type of triangle does this most closely resemble?
23) When classified by its angles, what type of triangle does this most closely resemble?
Go to the next link (#10) and read some of the theories offered to explain the disappearances. Using this information, choose one of the missing ships from the last link (#11) and explain the disappearance according to the directions in question 24.
24) Choose a ship from the list, print out the description of the incident and write an essay explaining what could have happened. Be sure to support your explanation with facts from the theories link.