Trigonometry
Chapter 10.4 & 10.5
Embedded Files
Trigonometry Beyond School:
Trigonometry Beyond School:
You will use these skills in .....
Success Criteria:
Success Criteria:
You will be able to:
Identify....
Key Vocabulary:
Bearing, North, clockwise, elevation, depression
New Knowledge:
New Knowledge:
cos x = A/H
cos m = 4/5
m = cos^1 (4/5) find the inverse of cos
using GDC
m = 36.9 deg
*always round to 1 decimal place for angles
DE: 22 x sin (42) = 14.7
Solve for hypotenuse using pythagoras theorem....
Notes:
Find the missing angle by first identifying the sides in terms of O,H & A
Then select correct rule for sin, cos or tan
Then substitute the values into the formula and solve for the angle
Don't forget to use inverse of sin, cos, tan
Bearings are the directional angle from north in a clock wise direction
Angles from a point are the focus in the question
Application Tasks:
Application Tasks:
Textbook Questions: Chapter 10.4 Qu 1 - 13 every 3rd question, Qu 16 - 26 every 2nd question
Chapter 10.5 Qu 1 - 10, 11, 13, 15
Create a mindmap in your summary book highlighting all of the key vocabulary words and provide examples
Create a problem to solve
Additional Resources
Additional Resources
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