This week I learned how to find the value of an unknown angle using sine, cosine, or tangent.
In the example above I used tangent to find the angle using just the information that you see on the triangle.
This week I learned how to read a micrometer. A micrometer is a tool that gives very accurate measurements in millimeters. What you do is you read the reading on the left, in this case it is 5.5 mm and add it with the reading on the right, in this case 0.28 mm.
5.5+0.28=5.78 mm
Colin Penk
The new method that I found is called the ladder method (example below). What you do is you write down the numbers and find a common factor between the two numbers to divide by and you divide until you no longer have a common factor. If you then want to find the GCF, you simply multiply the numbers on the left, which were the factors you divided by to begin with. If you want to find the LCM, you multiply the numbers on the left and at the bottom, as shown in the example below.
I prefer the prime factorization method we learned in class because it is easier and less time consuming for me.