Unit 9 Review (Trig)

Identify the Law of Sines

• Soh Cah Toa

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Solve for x.

• 24.336

• 155.664

• Don't choose this one.

• 33.561

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Find b

• 12
• 22

• 23.332

• 13.987

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

If three sides of a triangle are given, the Law of ____ is used to solve the triangle.

• Cosines
• Sines
• Tangent
• Cosecents

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which of the following formulas shows the Law of Cosines?

• c² = a² + b² - 4ac + cosA
• c² = a² - b² - 2abcosC
• c² = a² + b² - 2abcosC
• (cos A)/a = (cos B)/b

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

What are the possible criteria for the Law of Cosines?

• SSA, SSS

• SSA, ASA

• SSS, SAS

• AAS, ASA

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which law would you use?

• Law of Sines

• Law of Cosines

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Solve for x. Round to the nearest tenth.

• 15.3

• 16.6

• 24.1

• 24.3

Tags

CCSS.HSG.SRT.C.8

Find the measure of the missing angle.

• 64^o
• 26^o
• 61^o
• 8^o

Tags

CCSS.HSG.SRT.C.8

What is the length of x in this 45-45-90 triangle?

• 4√2
• 4
• 8
• 4√3

Tags

CCSS.8.G.B.8