SB En Geom 8­3 Completed.notebook
Lesson 8­3
November 08, 2012
Tangent Ratio
Find the ratio of CB , AB
A
AC , AB
CB
AC
8
4
B
C
4√3
On you calculator find Sin 60, Cos 60, and Tan 60. What do you notice?
Dec 12­7:29 AM
tangent ratio ­ ratio of leg opposite to the leg adjacent
Expl 1. Write the tangent ratios for <T and <U.
U
5
T
3
V
4
Ckpt 1. Write the tangent ratio for <K and <J.
J
3
L
7
K
Dec 12­7:33 AM
1
SB En Geom 8­3 Completed.notebook
November 08, 2012
Expl 2. How far away is the distant cliff?
1
50 ft
Nov 20­9:13 AM
Ckpt 2. Find the value of w to the nearest tenth.
a.
10
b.
54
w
w
28
c.
1.0
2.5
57
w
33
Dec 12­7:37 AM
2
SB En Geom 8­3 Completed.notebook
November 08, 2012
Expl 3. Use inverse tangent to find the m<X to the nearest degree.
H
10
6
B
X
8
Ckpt 3. Find m<Y to the nearest degree.
P
100
T
41
Y
Dec 12­7:40 AM
Homework
Lesson 8-3
1-22, 27-29,
31-43
Dec 12­7:43 AM
3