Trigonometry Review Game

Do not use a calculator on any of these questions until specified otherwise.

Sin(45) = ? (1 min)

Answer: Sin(45) = sqrt(2)/2

cos(45) = ? (15 secs)

Answer cos(45) = sqrt(2)/2 Sin(45) = cos(45) since they are cofunctions.

cos(60) = ? (1 min)

answer cos(60) = 1/2

tan(60) = ? (1 min)

answer tan(60) = sqrt(3)

tan(90) = ? (1 min)

answer tan(90) = undefined

sin(0) = ? (1 min)

answer sin(0) = 0

Find the exact value: sin cos 60 =

answer sin cos 60 = 5/4

csc 2 (30) = ?

answer csc 2 (30) = 4

Describe the co function theorem and give an example.

Answer: Answers will vary. Anything to the likes of “If two angles are cofunctions, then the trig function of one angle will equal the cofunction of its complement. Ex: sin30 = cos60” would do.

Ok, now you can use a calculator.

Cot(64.8) = ?

answer Cot(64.8) =.4706

Find the cofunction for the following. Keep your answer in degrees and minutes. Csc(63 o 14’) = ?

answer Find the cofunction for the following. Keep your answer in degrees and minutes. Csc(63 o 14’) = sec(26 o 46’)

81 o 9’ – 43 o 47’ = ?

answer 81 o 9’ – 43 o 47’ = 37 o 22’

Find x Csc(x) =

answer X = 36.7 o

The rest of the test are right triangle problems.