Section 6.1 The Law of Sines

Get out your practice test I will walk around and check it off and answer questions! If you are all done, start the warm up on the packet that you should have picked up when you walked in

Warm Up

You Try! (back side of the WS)

EX 1 Solve a triangle for its missing measurements when A = 20° C = 43° an c = 32 inches 430 200 C=32

EX 2 A pole tilts towards the sun at an 8 degree angle from the vertical, and it casts a 22-foot shadow. The angle of elevation from the tip of the shadow to the top of the pole is 43 degrees. How tall is the pole?

Practice! Try #1-7 odd This WS will eventually be HW after the test!

What if you are only given 1 angle and 2 sides? 4 different cases can occur a > h a = h a < h h < a < b Basically: if <A is an acute angle in ASS and if a > the other side given in ASS, then only 1 triangle exists.

EX 3: SSA a = 22 inches b = 12 inches A = 42 degrees is <A acute? Is a > b? where there is 1 single solution

EX 4: SSA a = 15 in b = 25 in A = 85 degrees is <A acute? Is a > b? where there is NO solution

EX 5: SSA a = 12 meters b = 31 meters A = 20.5 degrees is <A acute? Is a > b? where there are 2 solutions

Classwork Worksheet #12-18 even

Find the area of the triangle having the indicated angles and sides: a = 6in b = 10in

Classwork Classwork #26 and 28 Hw: finish the worksheet