## Tuesday, January 10, 2012

### Textbook Questions

Today in class we were assigned to do textbook pg. 85 and 86 questions 2, 4, 6 to 23. I will explain the answers of questions 6, 11, 12, 15c, 16c, 19, and 22 in this scribe post.
A)

B) Yes, 64 is a perfect square because its prime factors can be share equally among the sides. 8x8=64.

C)

(Squaring is the same as multiplying a number by itself)
A) 9x9=81
B) 11x11=121

A) 3x3=9
B) 18x18=324

C)

C)

A) The side length of the square is 630m.
B) If the dimensions of the square is 629m, the area would be 395 641 square meters.
C)

Here is a video about square roots.

(The following will be pictures I took in the Tiananmen Square during my trip in 2009.)

Pythagorean Relationship Questions:
1. Answer in a short paragraph and with diagrams

The pythagorean relationship states that the square of leg A plus the square of the leg B equals the square of the hypotenuse C. So if A is 3, B is 4, then C has to be 5 because
2. Solve for the missing side length.
To solve for the missing side, I first have to label the sides of the triangle. I labeled the legs A and B, then label the hypotenuse C. Then I apply the pythagorean relationship to find the side C. The length on side C is 13cm.
3. Is this a right triangle? Prove it!!!

To solve question, I first label the sides of the triangle A, B, C. Then I apply the pythagorean relationship to see if the numbers fit. If the answer on both sides of the equation is the same, then it is a right triangle, but if it's not the same, it is not a right triangle because according to the pythagorean relationship, a2+b2=c2. The answers of the equation is not the same, so this triangle is not a right triangle.

1. GREAT JOB Cindy! I liked how it's really clear to read and how it's neat and organize. Really great video you got and the picture's you took were nice. GOOOD JOB again(:

2. Holy cow, GREAT job Cindy! This was really clear and understanding! I see no mistakes so your all good! The video was really helpful! The pictures were outstanding! Amazing job!

3. Good job Cindy !!! It was really easy to understand. I liked how you put pictures of Tiananmen Square. You had a great video that helped me out, but you should have put a link to a website with fun games. Good job over all !

4. AMAZING JOB cindy! your scribe post was very clear and easy to understand! i also really liked your pictures. But next time maybe you should add a link but other than that great job!

5. Awesome Job Cindy, your scribe post was very well done. I really like how it was clear neat and very easy to understand what was going on. I also like how you used pictures to express your answer. Also I love how you added pictures from Tiananmen Square it was very interesting to look at. Good Job Cindy.

6. AWESOME JOB Cindy! your scribepost was very well done. It was very clear and understandable. The pictures were also very clear and i think that it helped out a lot of students. I also liked your link and video they were also very helpful. The pictures of Tiananmen Square was really cool to see i'm guessing that your trip was a lot of fun and you want to go back again someday. Well great job overall and keep up the hard work!

7. GREAT JOB CINDY! Your scribe is really amazing! All the information are there and it was very understandable. I like how your pictures are clear and very easy to see. Your link and video are helpful as well. Wow, you included everything! Keep it up, Cindy!

8. GREAT JOB CINDY! Your scribe is really amazing! All the information are there and it was very understandable. I like how your pictures are clear and very easy to see. Your link and video are helpful as well. Wow, you included everything! Keep it up, Cindy!