Identify the Law of Sines

• Sin²x + Cos²x =1

• SinA+SinB=SinC

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

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which would you use?

• Law of Sines

• Law of Cosines

• Pythagorean Theorem

• Law of Gravity

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which would you use?

• Law of Sines

• Law of Cosines

• Pythagorean Theorem

• Law of Gravity

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

What is the length of side x?

• 130 cm
• 112 cm
• 150 cm
• 105 cm

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

What is the measure of angle A?

• 50 degrees
• 60 degrees
• 78 degrees
• 74 degrees

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Given ΔDEG, where m<E=43⁰, d=216 and g=305;

find the length of side e (to the nearest whole number)

• 43,318

• 208

• 217

• 306

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

In ΔABC, m<C = 53, m<B = 44 and AC = 7. Find AB to nearest tenth.

• 3.9

• 6.1

• 6.8

• 8.0

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Given ΔHAT, where m<T=99⁰, HA=910 and AT=400;

find the measure of <H (to the nearest degree)

• 31⁰

• 29⁰

• 24⁰

• 26⁰

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11