Sine Law or Cosine Law

Which Law would you use?

• Law of Sines

• Law of Cosines

• Law of the Jungle

• Law of Gravity

To solve the triangle shown, you would start with which formula?

• Law of Cosines

• Law of Sines

• Heron's Formula

• Triangle sum theorem

• A
• B
• C
• D

Calculate the length of AC

• 30

• 24

• 27

• 35

Find the measure of ∠A

• 18

• 28

• 25

• 24

What is the measure of angle A?

• 50 degrees

• 60 degrees

• 78 degrees

• 74 degrees

Find AC

• 12

• 10

• 23

• 14

The sine again cosine rules are sometimes called laws. Which law would you use?

• Law of Sines

• Law of Cosines

• Law of the Jungle

• Law of Gravity

The sine again cosine rules are sometimes called laws. Which Law would you use?

• Law of Sines

• Law of Cosines

• Law of the Jungle

• Law of Gravity

Find the missing side x

• 30.4cm

• 925cm

• 42.3cm

• 21.9cm