Difference between revisions of "Activity3 Angles of elevation and depression"
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=== Evaluation at the end of the activity === | === Evaluation at the end of the activity === | ||
In the given diagram of a ladder leaning against a wall, which of the following angles represents the ladder’s angle of elevation?<gallery> | In the given diagram of a ladder leaning against a wall, which of the following angles represents the ladder’s angle of elevation?<gallery> | ||
− | + | /home/girija/Desktop/angle.png | |
+ | </gallery><gallery> | ||
+ | angle.png | ||
</gallery> | </gallery> | ||
− | |||
=== Application level: === | === Application level: === | ||
In real world situations, we often discuss the angle of elevation and depression. The angle of elevation and depression is used often in word problems. | In real world situations, we often discuss the angle of elevation and depression. The angle of elevation and depression is used often in word problems. |
Revision as of 20:03, 15 July 2020
Objectives
Understand the angle of elevation and angle of depression and what is the use of them.
Estimated Time
40 minutes
Prerequisites/Instructions, prior preparations, if any
know about hypotenuse, short leg, long leg,right angle and vertices of right triangle and how to measure side and angle by using ruler and Protractor.
Materials/ Resources needed
Digital : Click here to open the file.
Non-digital : Tape measure.
Process (How to do the activity)
Download this geogebra file from this link.
Procedure:
Activity : Look Up and Look Down
- When you see an object above you(Looks up),there is an angle of elevation between the horizontal and your line of sight to the object.
- When you see an object below you(Looks down),there is an angle of depression between the horizontal and your line of sight to the object
- Identify the segment that represents the line of sight.
- Identify the angle that represent the angle of elevation or angle of depression.
Evaluation at the end of the activity
In the given diagram of a ladder leaning against a wall, which of the following angles represents the ladder’s angle of elevation?
- /home/girija/Desktop/angle.png
- Angle.png
Application level:
In real world situations, we often discuss the angle of elevation and depression. The angle of elevation and depression is used often in word problems.
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