Okay so this week we had our chapter 7 text on trigonometry. I hope everyone did good on the test. I thought I did alright except for the 3 word problems on latitude and earth and all that so I may need some help with those types of word problems. We also started chapter 9 this week on Right triangles.
Notes:
*the hypotenuse is opposite the right angle.
*A= 1/2 bh
*SOHCAHTOA---stands for....
Sin θ= opposite leg/hypotenuse
Cos θ= adjacent leg/hypotenuse
Tan θ= opposite leg/adjacent leg
Example: a right triangle has an angle of 28 degrees, an opposite leg of 40 degrees, and an adjacent leg b.
Tan θ= opposite leg/ adjacent leg
Tan 28 degrees=40/b
b Tan 28 degrees=4
b Tan
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