gr10 trig worksheet covering the basics of trig

Learners notes

LESSON 2
Use of Pythagoras:
Complete the following table using Pythagoras theorem
= Based on angle

Opp adj hyp

1. 3 4

2. 6 10

3. 12 13

4. 8 17




In the diagram below, Define the 6 trig ratios in terms of triangles given:
Complete the following:
Example 1 Example 2




Solution: Solution:

,Complete the following:
Example 3 Example 4




Solution: Solution:




Complete the following:

Example 5:
Given


2. tan




Classwork / Homework
1. Given

Use the definitions to complete the following:

, a)
b) cos
c) tan
d) cosec
e) sin




LESSON 3
Try the following:
1. Given
Use the definitions to complete the following:

a)
b) cos
c) tan
d) cosec
e) sin


Working with given ratio
Example 6: Example 7:
Determine a) Determine a)
b) b)


Example 8: Example 9:
Determine a) Determine a)
b) b)
Classwork / Homework…
1. I
Determine:
a)
b) sin
c)
d) 1