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Law of Sine

Law of Sine

Assessment

Presentation

•

Mathematics

•

9th - 10th Grade

•

Practice Problem

•

Medium

Created by

Maria Galisanao

Used 13+ times

FREE Resource

17 Slides • 18 Questions

1

Sine Rule

- identify the sine rule

- solve sine rule

- practice exercises

- feedback

Slide image

2

3

Open Ended

How does sine rule differ from other rules in trigonometry?

4

LET'S TRY

Solve the following

5

Open Ended

Question image

In triangle ABC, A = 67.6 deg, B = 45.5 deg and AB = 7.6cm. Find angle C

6

Open Ended

Question image

In triangle ABC, A = 67.6 deg, B = 45.5 deg and AB = 7.6cm. Find the length of BC

7

Open Ended

Question image

In triangle ABC, A = 67.6 deg, B = 45.5 deg and AB = 7.6cm. Find the length of AC

8

SOLUTION

9

In triangle ABC, A = 67.6 deg, B = 45.5 deg and AB = 7.6cm. Find angle C


Slide image

10

In triangle ABC, A = 67.6 deg, B = 45.5 deg and AB = 7.6cm. Find the length of BC


Slide image

11

In triangle ABC, A = 67.6 deg, B = 45.5 deg and AB = 7.6cm. Find the length of AC


Slide image

12

Another example

let's try

13

Open Ended

Question image

In triangle ABC, B = 58.3 deg, C = 39.4 deg and BC = 12.5cm. Find angle A

14

Open Ended

In triangle ABC, B = 58.3 deg, C = 39.4 deg and BC = 12.5cm. Find length AB

15

Open Ended

In triangle ABC, B = 58.3 deg, C = 39.4 deg and BC = 12.5cm. Find length AC

16

SOLUTION

17


In triangle ABC, B = 58.3 deg, C = 39.4 deg and BC = 12.5cm. Find angle A

Slide image

18

In triangle ABC, A = 67.6 deg, B = 45.5 deg and AB = 7.6cm. Find the length of AB


Slide image

19

In triangle ABC, A = 67.6 deg, B = 45.5 deg and AB = 7.6cm. Find the length of AC


Slide image

20

Open Ended

Question image

In triangle ABC, B = 50o , AB 7.5 cm and AC = 9.5 cm. Find angle C.

21

Open Ended

Question image

In triangle ABC, B = 50o , AB 7.5 cm and AC = 9.5 cm. Find angle A.

22

Open Ended

Question image

In triangle ABC, B = 50o , AB 7.5 cm and AC = 9.5 cm. Find length BC.

23

SOLUTION

24

In triangle ABC, B = 50o , AB 7.5 cm and AC = 9.5 cm. Find angle C.

Slide image

25

In triangle ABC, B = 50o , AB 7.5 cm and AC = 9.5 cm. Find angle A.

Slide image

26

In triangle ABC, B = 50o , AB 7.5 cm and AC = 9.5 cm. Find length BC.

Slide image

27

let's practice

28

Multiple Choice

Find b if angle A = 64 deg, B = 98 deg and a = 29 mi

1

32

2

36

3

40

4

41

29

Multiple Choice

Find b if angle A = 57 deg, c = 35 cm and a = 33 cm

1

31.3

2

34.1

3

42.2

4

45.5

30

Multiple Choice

Find c if angle C = 90 deg, B = 30 deg and b = 15 in

1

20

2

28

3

30

4

33

31

Multiple Choice

In triangle RST, R = 153 deg, t= 29km, r=16km. Find angle S.

1

64

2

10

3

2

4

not a triangle

32

Multiple Choice

Question image

What is the value of segment KP?

1

16

2

21

3

25

4

31

33

Multiple Choice

Question image

What is the value of segment PH?

1

16

2

21

3

25

4

31

34

Multiple Choice

Question image

What is the value of segment KP?

1

16

2

21

3

25

4

31

35

Poll

did you understand the sine rule?

very clear

need more practice

no

pattern-tertiary

Sine Rule

- identify the sine rule

- solve sine rule

- practice exercises

- feedback

Slide image

Show answer

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