Math 3 Chapter 7

What is sin^-1(1/2)?

• 150
• 120
• 60
• 30

Tags

CCSS.HSF.TF.B.7

What is cos^-1(0)?

• -180
• 90
• 0
• -90

Tags

CCSS.HSF.TF.B.7

CCSS.HSF.TF.A.2

4. Name the smallest angle in this triangle.

• ∠A

• ∠B

• ∠C

Tags

CCSS.HSG.CO.C.10

If you know the lengths of two sides and the angle between them, use this formula to find the side opposite the angle you know.

• Law of Sign

• Law of Cosine

• Law of Tangent

• Law of Sine

If you know the lengths of three sides to a triangle, what formula can you use to find an angle measure?

• Law of Sine
• Law of Cosine
• Law of Tangent
• Law of Sign

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

Identify the Law of Sines

• Sin²x + Cos²x =1
• Sin(A)/a = Sin(B)/b = Sin(C)/c
• Sin(A)Sin(B)Sin(C) = 1
• Soh-Cah-Toa

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which one is the easy way to remember trigonometric ratios?

• Sah Coh Toa
• Soh Cah Toa
• Soh Cah Tao
• Soh Ceh Toa

Tags

CCSS.HSG.SRT.C.6

Which formula would you use?

• Law of Sines

• Law of Cosines

• Pythagorean Theorem

• SOH CAH TOA

• 32.58

• 57.42

• 31.44

• 59.02