Goal

I think that I didn't did much. My goal is to try and do better also try to wake up early.

Centroid

Drew the triangle and found the centroid on the patty paper and then copy the construction on the cardboard. Drew the midpoint and connect it to the vertex. When balance on the pencil it is the median. Measure the length divided by the longer line and get a proportion and it come to a shorter length.

Prime numbers

Eucild was the first to prove that prime number is infinity because it goes on forever and ever. He used the well known prime number to add it to every product. For example, 2*3+1=7. Then he continue by adding 5 to the same problem, 2*3+5+1=31 and it came out to be a prime number too. Unfortunally some of the problem didn't come out to be a prime number but there are still more prime when he keep doing the process. This is his proof:P1,P2,P3,..Pn representing the prime and the numbers. Multiply them and then add by 1 calling this a new interger q. When hte multipy and add to equal to q it is a prime number. When the answer is not q then it have to be divided by and it's called r. Dividing q with the prime number will come to a remainder 1 so it can not be a prime number.

Fibonacci

http://www.mcs.surrey.ac.uk/personal/r.knott/fibonacci/fibnat.html#bees

http://www.mcs.surrey.ac.uk/personal/r.knott/fibonacci/fibnat.html#bees

http://www.mcs.surrey.ac.uk/personal/r.knott/fibonacci/fibnat.html#seeds

http://www.mcs.surrey.ac.uk/personal/r.knott/fibonacci/fibnat.html#leaf
Fibonacci numbers are sequence that start with a number of term and it creates the value of term. You can use the formula F(n).For example: 1+1=2, 2+1=3, 3+2=5..etc. To solve a rectangle you use width/lenght equal to lenght/lenght+width and then you use proportion which is cross multiplying and then use the quadratic formula.Approximate the 3decimal is called Golden ratio.

Khanh's Astrid

We learned to draw a astrid using graph paper and here's a picutre of it.

Khanh's Numb3rs Activity

Charlie was helping his brother figure out a crime scene using math in the video, he is trying to construct the probability of the hot spot of the suspect and he found the point of orgin which can also be the circumcenter of the suspect home on the hot spot later on using the places victims were being rape and the murder. The point on the grid create a triangle and he perpendicular bisector the triangle and it made a big hot spot for it then the result was not really accurate because the suspect is living there but not in that location at time. The criminal didn't want to make a pattern so it's next victim but there was in a way because the grid Charlie made show the chance and accuracy and because of one location was wrong the criminal gor to his nexst victim. Charlie made another equation from the new information he got agian andthis time it was the correct data he need and he figured out another hot spot for the place the criminal can be working. Two hot spot narrow down the path of the suspect and give a better result. His brother Rob Morrow then use the computer to analyze the suspect around the hot spot and he found one that is around there and he went to check and the criminal was really there.

Khanh Tetrahedron

It was made with yarns and clear straw. We had to use a needle and have yarns through the straw to connect them together. The Tetrahedron have a regular and equailateral or equilangluar

Airplane

Here's a picture of my airplane that I built during class. We had a contest of straighest, highest, fanicest,etc. My airplane didn't won anything of the contest. For my next contest I would like to win the furthest.

Khanh's Pentagon and example of Reflectional Symmetry

Here's my picture of a Pentagon. I know it is a pentagon because the flower have 5sides. Things that are 5sided are called pentagon.

Here's my picture of a Reflectional Symmetry. This leaf is reflectional because if you fold the leaf in half, both side woule be equal.