# Difference between revisions of "Activity1 Basic Trignometric Ratios"

From Karnataka Open Educational Resources

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=== Objectives === | === Objectives === | ||

+ | Students will be able to identify the adjacent/opposite side, with respect to theta and the hypotenuse of a triangle and define the six trigonometric ratios of an acute angle of triangle. | ||

=== Estimated Time === | === Estimated Time === | ||

+ | 40 minutes | ||

=== Prerequisites/Instructions, prior preparations, if any === | === Prerequisites/Instructions, prior preparations, if any === | ||

+ | Meaning of ratio,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 and also how to convert angle measure from degree to radians and radians to degree. | ||

=== Materials/ Resources needed === | === Materials/ Resources needed === | ||

Line 9: | Line 12: | ||

=== Process (How to do the activity) === | === Process (How to do the activity) === | ||

− | {{Geogebra|nekbgkkr}} | + | {{Geogebra|nekbgkkr}}Activity: |

+ | # let us consider one right angle triangle and write the possible ratios of its sides with respect to its acute angle. | ||

+ | # Triangle has 3 sides.Using the sides of triangle,we can have six different ratios.(To write the ratio(fraction)numerator can be written in 3 ways and denominator in 2 ways, both can be written in 3*2=6 ways) | ||

+ | # Identify the name of the ratios in Trigonometry. | ||

+ | # Measure adjacent side and opposite side in a given triangle and record it on the table | ||

=== Evaluation at the end of the activity === | === Evaluation at the end of the activity === | ||

+ | Find the six trigonometric functions of the triangle? | ||

Go back - [[Trigonometry|click here]] | Go back - [[Trigonometry|click here]] |

## Revision as of 11:53, 29 June 2020

## Contents

### Objectives

Students will be able to identify the adjacent/opposite side, with respect to theta and the hypotenuse of a triangle and define the six trigonometric ratios of an acute angle of triangle.

### Estimated Time

40 minutes

### Prerequisites/Instructions, prior preparations, if any

Meaning of ratio,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 and also how to convert angle measure from degree to radians and radians to degree.

### Materials/ Resources needed

Click here to open the file

### Process (How to do the activity)

Download this geogebra file from this link.

Activity:

- let us consider one right angle triangle and write the possible ratios of its sides with respect to its acute angle.
- Triangle has 3 sides.Using the sides of triangle,we can have six different ratios.(To write the ratio(fraction)numerator can be written in 3 ways and denominator in 2 ways, both can be written in 3*2=6 ways)
- Identify the name of the ratios in Trigonometry.
- Measure adjacent side and opposite side in a given triangle and record it on the table

### Evaluation at the end of the activity

Find the six trigonometric functions of the triangle?

Go back - click here