LESSON
Trigonometry (Revision)
38 minutes ago by
15 slides

Trigonometry (Revision)

by Teacher Henny

Q.

State your name and class here (e.g. Wali YR11G3)

Q.

How are you feeling today?

I am feeling great!!

I am ok today but not always..

Not so great...

I feel lost..not sure what to do.

​Before we continue with our lesson, I would like to encourage you to be PERSISTENT!

​These are difficult times but we need to push on and have a positive mindset!

​TRIGONOMETRY (REVISION)

LESSON OBJECTIVE:

• ​recall on the important concepts in trigonometry.

​STEPS TO SUCCESS:

​know what SOH, CAH, TOA is.

​know how to apply Pythagoras Theorem

​know how to calculate adjacent, opposite or hypotenuse in a right angled triangle.

Q.

We can use SOH-CAH-TOA for...

Any triangle ever

Non-right triangles only

Right Triangles only

Never

Q. The ratio in a right triangle of adjacent to hypotenuse is _____
sine
cosine
tangent
inverse cosine
Q.  Find side AB?
20 m
5 m
11.54 m
8.66 m
Q. Choose the correct ratio.
A
B
C
D
Q.

Find the length of side w.

21.4 cm

18.0 cm

36.5 cm

43.6 cm

Q.

Solve for x.

24.20

4.92

290.4

29.75

Q.

Find the measure of the indicated angle (?) round to the nearest tenth.

9.4

55.2

20.15

19.4

Q.

Solve for the misssing distance

18.9

19.5

47

27.5

Q.

Solve for x.