Embed Size (px)
Citation preview
2C Lesson 29 Solve Problems with Tangent.notebook March 01, 2018
7220
x
You are 20 feet away from a tree
and look up at an angle of 720.
How much taller is the tree than you?
10
p 125 and 1267) 6.17 m 8) 29.44 ft
2)196.61
2C Lesson 29 Solve Problems with Tangent.notebook March 01, 2018
p 1238
2C Lesson 29 Solve Problems with Tangent.notebook March 01, 2018
How do we know the angle of elevation or depression?
We use a CLINOMETER
Pick a spot to measure the height of.
Look through the straw at that spot.
Teammates need to note the angle from the clinometer.
Measure your eye height and your distance from the base of the object.
Draw a diagram and model the situation as a triangle; solve for x. Don't forget to incorporate your height!
0180
10170
20160
30
15040
140 50
13060
120
70
110
80
100
90
90
180°
100
80
110
70
120
60
130
50
140
40
150
30
16020
170 10
180 0
Reading a clinometer
2C Lesson 29 Solve Problems with Tangent.notebook March 01, 2018
Object:
Team Member Name Eye level height Angle Distance
from object
Object height above eye level
Overall object height
Diagrams:
Up for a challenge? Choose an object BELOW eye level!
2C Lesson 29 Solve Problems with Tangent.notebook March 01, 2018
0180
10170
20160
30150
40140
50
13060
120 70
11080
100
90
90
160°
100
80
110
70
120
60
130
50
140
40
150
30
160
20
170
10
1800
Exit:
Is the clinometer showing an angle of elevation or depression?
What is that angle?
