Introduction to Trigonometry and Law of Sines and Cosines

Which Law would you use?

• Law of Sines

• Law of Cosines

Which Law would you use?

• Law of Sines

• Law of Cosines

Which Law would you use?

• Law of Sines

• Law of Cosines

Which Law would you use?

• Law of Sines

• Law of Cosines

What is the measure 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

Based on the given information determine the number of unique triangles that may exist.
J = 98°, j = 29, p = 6

• 1 Triangle
• 2 Triangles
• No Triangles
• 3 Triangles

Based on the given information determine the number of unique triangles that may exist.
A= 37°, a=8, b=14

• 1 Triangle
• 2 Triangles
• No Triangles
• 3 Triangles

Based on the given information determine the number of unique triangles that may exist.
B= 70°, b=85, c=88

• 1 Triangle
• 2 Triangles
• No Triangles
• 3 Triangles

Will this make 1 triangle? 2 Triangles? or No Triangles?
B= 70°, b=85, c=88

• 1 Triangle
• 2 Triangles
• No Triangles