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Opener. The Trigonometric Functions we will be looking at. SINE. COSINE. TANGENT. The Trigonometric Functions. SIN E. COS INE. TAN GENT. SIN E. Pronounced “sign”. COS INE. Pronounced “co-sign”. TAN GENT. Pronounced “tan-gent”. Greek Letter q. Pronounced “theta”. - PowerPoint PPT Presentation
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Opener
The Trigonometric Functions we will be
looking at
SINE
COSINE
TANGENT
The Trigonometric Functions
SINE
COSINE
TANGENT
SINE
Pronounced “sign”
Pronounced “co-sign”
COSINE
Pronounced “tan-gent”
TANGENT
Pronounced
“theta”
Greek Letter q
Represents an unknown angle
oppositehypotenuse
LegOppSin
Hyp
adjacent tan
Opp LegAdj Leg
hypotenuseopposite
adjacent
LegAdjCos
Hyp
Finding sin, cos, and tan.
Just writing a ratio.
Find the sine, the cosine, and the tangent of theta.
Give a fraction.
sinopphyp
3537
cosadjhyp
1237
tanoppadj
3512
35
12
37
Shrink yourself down and stand where the angle is.Now, figure out your ratios.
Find the sine, the cosine, and the tangent of theta
24.5
23.1
8.2
8.224.5
23.124.5
8.223.1
Shrink yourself down and stand where the angle is.Now, figure out your ratios.
sinopphyp
cosadjhyp
tanoppadj
ClassworkSPW 16.4
Draw ABC where BAC = 90 and sin B = 3/5
1.What is the length of
AB?
2.What is tan C?
4
4/3
Draw stick-man standing where the angle is and mark each given side. Then tell which trig ratio you have.
O H
sin
HomeworkWorksheet