Warm up was to solve a non-right triangle using the law of sines to find an angle. Went over homework, then examined figures or when you could or couldn't apply the law of sines. Learned what the law of cosines was, how and when to use it, and worked through examples to find both sides and angles. Then practiced this in groups on the whiteboards.
Notes from board
Homework
all of this handout (blank copy) (ANSWERS)
test rescheduled to Monday
Resources
excellent examples of law of sines worked out: link1 link2
law of cosines example, solving for a missing side (SAS) link
law of cosines example, solving for angle (SSS): link
finding all the missing angles when given the sides: link1 link2
No school Thursday due to weather. Warm up was on law of cosines to find an angle. Reviewed SohCahToa trig using Kahoot, then did several application problems requiring the law of sines and cosines. Passed out the first half of the practice assessment.
Notes from board
Homework
complete the first half of the practice test (blank copy) (SOLUTIONS)
test is Tuesday (A) or Wednesday (B)
Resources
basics of trig: link
finding missing side lengths using trig and Pythagorean theorem: link
inverse trig to find angles: link
sine and cosines of complementary angles: link
applied trig: link
using trig: link 1 link2 link3
applying soh-cah-toa trig to right triangle contextual problems link