2A Nov 16

Which law would you use to solve for side s?

• Law of Cosines

• Law of Sines

• Both

• Neither

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Solve for s. Round to the hundredths place

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

Find AC

• 12
• 10
• 23
• 14

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Find angle A

• 53.6
• 13.3
• 113.1

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Find the area of ABC to the nearest tenth.

• 62.3 units²

• 124.6 units²

• 77.0 units²

• 100 units²

Tags

CCSS.HSG.SRT.D.9

Find Area of DEF

• 9.5
• 119.5
• 59.8
• 5.4

Tags

CCSS.HSG.SRT.D.9

In triangle ABC, a = 5, b = 6, c = 7. Which law would you need to use first?

• Law of Sines

• Law of Cosines

• Both trig laws

• None of these

• Pythagorean Theorem

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11