Sine Cosine Degrees

Find the length of side b of the triangle with A = 48⁰ ,
a = 11 m,  B = 56^o

• 12 m

• 13 m

• 14 m

• 15 m

Triangle ABC has side a = 3, side b = 5, and side c = 7. Find the size of angle A. 

• 22⁰

• 38⁰

• 120⁰

• 150⁰

Which rule could you use?

• Sine rule

• Cosine rule

Find the size of angle A?

• 50 degrees

• 60 degrees

• 78 degrees

• 74 degrees

What is the length of side x?

• 130 cm

• 112 cm

• 150 cm

• 105 cm

Find the length of AB

• 10

• 8

• 6.1

• 4.9

Jack and Jill are considering to buy a land. A surveyor has given the an accurate sketch as shown below. What is the length of the side opposite angle D? 

• 42 ft

• 21 ft

• 84 ft

• 32 ft

Find the size of angle A

• 53.6

• 13.3

• 113.1

Find the length of BC using Cosine Rule.

• 626.70

• 25.03

• 313.35

Find the unknown side length, c.

• 6.52

• 6.38

• 6.91

• 6.67