Cosine Intro Lesson 23

determine all angles for 0 to 360 degrees for 3Tan=3.9

• 52.31^o and 232.31^o

• 45.96^o and 225.96^o

• 51.32^o and 128.68^o

• 38.2^o and 218.2^o

determine all angles for 0 to 360 degrees for Sin(x)=0.89

• 63.2^o and 243.2^o

• 62.9^o and 117.1^o

• 70.3^o and 250.3^o

• 55.45^o and 235.45^o

determine all angles for 0 to 360 degrees for Sin(x)/4=0.243

• 81.2^o and 99.8^o

• 76.43^o and 256.43^o

• 19.32^o and 199.32^o

• 76.4^o and 103.6^o

find the Sin of angle R in the triangle pictured
HINT: you will have to work out the Hypotenuse!

• Sin(R) = 0.6207

• Sin(R) = 0.8512

• Tan(R) = 1.213

• Sin(R) = 0.429

find the angle R in the triangle pictured
HINT: round the answer to the nearest whole number.

• 40^o

• 42^o

• 37^o

• 38^o

find the angle Q

• 82^o

• 56^o

• 72^o

• 71^o

find the Tan of angle Q
HINT: you will need to work out all sides..

• Tan(Q) = 0.244

• Cos(Q) = 0.344

• Tan(Q) = 0.445

• Tan(Q) = 0.344

find the Cotangent of angle Q
HINT: you will need to work out all sides..

• COT(Q) = 0.239

• COT(Q) = 0.546

• COT(Q) = 0.739

• COT(Q) = 0.344

if we use Degrees what can we convert these to using the formula below?
Degree x pi/180 = _______

to convert from Radian to degrees what is missing on this formula?

rad x 180/ __ = Degrees