9-1

This week in advanced math we learned about Chapter 9 section 1. We learned how to solve angles and lines for right triangles and iscolceles triangles. We learned how to take information out of the world problem and plug them into the triangle. The line touching the right angle is the adjacent side, the side opposite the right angle is the hypotenuse, the side not touching the right angle is the opposite side. To find the angle you do not have in a right triangle you do 180 minus 90 minus the other angle that they give you, then you find the missing angle. We also learned SOHCAHTOA which helps to remember that sin= opposite/hypotenuse, cos= adjacent/hypotenuse, tan=opposite/adjacent. With iscoceles triangles we learned that you split them into two right triangles, then you solve for one of the triangles, then you multiply it by 2.

Ex. How to find the other angle.

If you have a right triangle, one angle is 90 degrees, and lets say they give you another angle that is 77.

You have to do 180 minus 90 minus 77 to find the missing degree.

180-90-77= 13

Therefore the missing angle is 13 degrees.