Tuesday, November 16, 2010

Homework Book : Even Questions

a) a² = c² - b²
a² = 26² - 24²
a² = 676 - 576
a² = 100m²
√100m² = √a²
10m = a

b) b² = c² - a²
b² = 39² - 15²
b² = 1521 - 225
b² = 1296cm²
√1296cm² = √b²
36cm = b

a) a² + b² = c²
8² + 9² = c²
64 + 81 = c²
145cm² = c²
√145cm² = √c²
12cm = c

b) a² + b² = c²
6² + 10² = c²
36 + 100 = c²
136cm² = c²
√136cm² = √c²
12cm = c

I thought of the height as the line going upwards↑, the base as the bottom_, and the hypotenuse is the longest leg. I used B as the unknown height.
b² = c² - a²
b² = 11² - 4²
b² = 121 - 16
b² = 105cm²
√b² = √105cm²
b = 10.2m

No the ramp is not a right triangle because the areas of the legs added up to 13m². The area of the hypotenuse on the other hand was 25m². For the shape to be a right triangle the two values would have to be equal.

Here is a video and a link to a fun-filled Pythagoras game. ←Click that for the game ☺

P.S if you see a √ its a square root symbol.

1. Good Job, Kevin (:
I like the pictures and your post are very colorful. Maybe next time you should put more space in between the questions and pictures, overall you did a great job!

2. Good job, Kevin! I liked your post. It was very easy to read and understand. Thanks for doing the work.

3. Great job Kevin. You did all the work and it was easy to under stand but the first picture was a little hard to read. Other than that, great job.

4. Good job, Kevin! You added everything that was needed, but your first picture was a little hard to comprehend.

5. Good job, Kevin! I liked your scribe and it was very easy to understand. Keep up the good work!

6. Great job Kevin, I liked that you have all the answers in a neat formation but maybe you should add at least some space. I also liked the colors and the game.

7. Good job Kevin! Nice pictures and i liked the game.

8. Good job Kevin! I liked how you included the question as a picture and how you showed your work. I also liked the video.

9. Great post Kevin. You put in a great video and link and I like the different colours that you put in it. I also like the pictures even though some are a ittle blurry.

10. Greeat Post Kevin! I really like the colors you used and your video kinda helped me .. next time use more colors :)