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Academic Geometry
Unit 5 Project
Clinometers, Angles of Elevations and Trigonometry
Directions for Data Collection
You will be form a group of either three or four. You will be finding the height of three given
objects found on the data collection table and two objects of your choice. You will do this by
measuring the angle of elevation to the top of the object with your clinomoeter, the ground
distance from the clinometer to the base of the object, and the distance from the clinometer to the
ground. Each person in your group must have a job during the data collection stage. They are
as follows:
Groups of 3
 Job 1:
o Hold the clinometer aimed at the top of the object
 Job 2:
o Read the clinometer while person 1 is aiming it.
o Hold one end of the measuring tape when measuring the ground distance from
the clinometer to the base of the object, and the vertical distance from the
clinometer to the ground.
 Job 3:
o Hold one end of the of measuring tape when measuring the ground distance from
the clinometer to the base of the object, and the vertical distance from the
clinometer to the ground,
o Write all Data on the data collection table
Groups of 4
 Job 1:
o Hold the clinometer aimed at the top of the object
 Job 2:
o Hold one end of the measuring tape when measuring the ground distance from
the clinometer to the base of the object, and the vertical distance from the
clinometer to the ground.
 Job 3:
o Hold one end of the of measuring tape when measuring the ground distance from
the clinometer to the base of the object, and the vertical distance from the
clinometer to the ground
 Job 4:
o Read the clinometer while person 1 is aiming it.
o Write all Data on the data collection table
Notes
 Angle measures are in degrees and distance measurements are in inches.
 Do not assume that because the same person is using the clinometer each time (if you
choose to do it this way) that the distance from the clinometer to the ground is the
same.
 Photograph your efforts. Please make sure each member of the group is in at least one
photo, AT EACH SITE.
Trigonometry Project – Data Collection Sheet
Object
Flag Pole
School Building
Goal Posts on
Football Field
Choice 1
Choice 2
Angle of Elevation
(in degrees)
Ground Distance
from Clinometer to
the base of object
(in inches)
Height of
Clinometer
(in inches)
Academic Geometry
Unit 5 Project
Clinometers, angles of elevations
and trigonometry
Names
_____________________
_____________________
____________________
Data Analysis
Object 1: Flag Pole
a. Draw a Diagram that includes all measurements collected. (2 pts)
b. Find the height of this object using trigonometry. Show the trig function used,
the trig equation used, and all work leading to the answer. (4 pts)
Object 2: School Building
a. Draw a Diagram that includes all measurements collected. (2 pts)
b. Find the height of this object using trigonometry. Show the trig function used,
the trig equation used, and all work leading to the answer. (4 pts)
Object 3: Goal Post
a. Draw a Diagram that includes all measurements collected. (2 pts)
b. Find the height of this object using trigonometry. Show the trig function used,
the trig equation used, and all work leading to the answer. (4 pts)
Object 4: _________________________
a. Draw a Diagram that includes all measurements collected. (2 pts)
b. Find the height of this object using trigonometry. Show the trig function used,
the trig equation used, and all work leading to the answer. (4 pts)
Object 5: _________________________
a. Draw a Diagram that includes all measurements collected. (2 pts)
b. Find the height of this object using trigonometry. Show the trig function used,
the trig equation used, and all work leading to the answer. (4 pts)
Critical Thinking (4 pts each)
1. Which trigonometric function were you most inclined to use and why?
Describe in detail why it would be difficult to collect the data necessary for
the other two trigonometric functions.
2. Describe how you might find the length of a window that is very high up on
a building without getting a ladder and measuring it with a tape measure.
Draw a diagram if necessary.
WHAT TO SUBMIT
1.
2.
3.
4.
5.
Data Collection Table
Photographs
Data Analysis Pages, including diagrams and calculations
Critical Thinking Questions
On an individual basis, a written summary detailing your experience. Feel free to
include details about the group dynamic such as scheduling and individual
contributions, details about