130_10.2_notes_quiz

What is the main topic of Section 10.2?

• Non-Right Triangles: Law of Cosines

• Right Triangles: Pythagorean Theorem

• Non-Right Triangles: Law of Sines

• Right Triangles: Law of Sines

What is the purpose of using the Law of Cosines in this section?

• To solve right triangles

• To solve oblique triangles

• To find the area of a square

• To calculate the perimeter of a circle

How far does the boat travel after turning 20 degrees?

• 5 miles

• 10 miles

• 8 miles

• 15 miles

What is the known distance the boat travels before turning?

• 5 miles

• 10 miles

• 8 miles

• 15 miles

What is the purpose of Heron's formula as mentioned in the document?

• To find the area of a triangle

• To calculate the hypotenuse

• To determine the perimeter

• To solve for angles

What is the initial position of vertex A in the coordinate plane?

• Origin

• (1, 1)

• (0, 1)

• (1, 0)

What does the Law of Cosines state about the square of any side of a triangle?

• It is equal to the sum of the squares of the other two sides minus twice the product of the other two sides and the cosine of the included angle.

• It is equal to the sum of the squares of the other two sides.

• It is equal to twice the product of the other two sides and the cosine of the included angle.

• It is equal to the sum of the squares of the other two sides plus twice the product of the other two sides and the cosine of the included angle.

What is the value of cos(30) used in the calculation?

• √3/2

• 1/2

• √2/2

• 1

What is the relationship between angles α, β, and γ in a triangle?

• α + β + γ = 180 degrees

• α + β + γ = 360 degrees

• α + β + γ = 90 degrees

• α + β + γ = 270 degrees

What is the missing angle in a triangle with angles 30° and 23.8°?

• 126.2°

• 116.2°

• 106.2°

• 96.2°