Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Name_____________________________________ Trig – Missing Angle Date_______ IA 1 Per____ Warm-Up: Given triangle ABC with right angle at C, set up the following trig ratios. Sin A = Cos A = Sin B = A 26 Cos B = B Tan A = C 24 Tan B = A 1. Given triangle ABC with right angle at C, set up the following trig ratios. (Convert each fraction to a decimal with 4 decimal places) Sin A = Sin B = Cos A = Cos B = Tan A = 10 8 10 C 6 Tan B = 2. Given the following triangle, identify the following: Sin 30 = Sin 60 = Cos 30 = Cos 60 = Tan 30 = Tan 60 = A 30O 2 3 C 60O 1 B Using the calculator Every angle in a right triangle has a trigonometric ratio that applied to it. If we know the measure of the angle, but not the sides, we can still find the ratio, in decimal form using our calculators. 3. Evaluate the following trigonometric ratios using your calculator. Sin 30 = Cos 30 = Tan 30 = Sin 60 = Cos 60 = Tan 60 = B 4. Given the trig ratio, find the measure of the angle x to the nearest degree. Sin x = .8345 Cos x = .3198 Tan x = 1.9876 Tan x = .5648 Sin x = .6514 Cos x = .0934 Cos x = 9 15 Tan x = 12 7 Sin x = 4 5 5. Find the measure of angle A and angle B to the nearest degree: a) b) A A 7 6 13 B C C 18 B A A c) d) 24 25 7 C C B B 17 6. Find the value of x and round your answers to the nearest tenth. a) xo b) 45 ft. 50 meters xo 50 ft. 7 meters B c) d) 17ft A 41 C x 15ft A 40 C x B