Chap9day2.notebook
March 20, 2013
What does SOH­CAH­TOA stand for?
TOA
CAH
S OH
opp
sin =
hyp
opp
tan = adj
adj
cos = hyp
A
b
C
G
c
B
a
E
J
i
H
e
f
j
h
I
g
M
k
F
L
l
m
K
Circles angles A, E, J and K in RED and label the sides in reference to that angle.
Chap9day2
1
Chap9day2.notebook
March 20, 2013
Trig Day 2
OBJ: To find the lengths of sides of a rt triangle using
SOH CAH TOA
SOH
sin =
CAH
opp
hyp
adj
cos = hyp
TOA
opp
tan = adj
A
x
y
50o
C 20in
Chap9day2
B
2
Chap9day2.notebook
March 20, 2013
SO H
sin =
opp
hyp
CA H
adj
cos = hyp
TO A
opp
tan = adj
B
16o
20 ft
a
C
Chap9day2
b
A
3
Chap9day2.notebook
March 20, 2013
SOH
sin =
CAH
opp
hyp
adj
cos = hyp
TOA
opp
tan = adj
C
16 cm
A
37o
B
Practice sheet
Do problems 1, 3, 5
Chap9day2
4
Chap9day2.notebook
March 20, 2013
Now try 9, 11, 13
Smart goal quiz
Assignment: WS on finding sides
Chap9day2
5