Law of Sines

Identify the Law of Sines

• $\sin^2x+\cos^2x=1$

• $\frac{\sin\left(A\right)}{a}=\frac{\sin\left(B\right)}{b}=\frac{\sin\left(C\right)}{c}$

• $\sin\left(A\right)\sin\left(B\right)\sin\left(C\right)=1$

• Soh Cah Toa

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

4. Name the smallest angle in this triangle.

• ∠A

• ∠B

• ∠C

Tags

CCSS.HSG.CO.C.10

Identify the shortest side measure.

• QP
• QM
• MP

Tags

CCSS.HSG.CO.C.10

What is the measure of the missing angle?

• 82
• 43
• 55
• 180

Tags

CCSS.8.G.A.5

Find the measure of the missing angle.

• 47

• 57

• 53

• 133

Tags

CCSS.8.G.A.5

In triangle ABC shown below, AC = 14 km, AB = 28 km and angle ACB = 87 degrees. Select one of the following that can be used to find angle B

• $\frac{28}{Sin\ B}\ =\ \frac{14}{Sin\ \ 87}$

• $\frac{87}{Sin\ B}\ =\ \frac{14}{Sin\ \ 28}$
  

• $\frac{14}{Sin\ B}\ =\ \frac{28}{Sin\ \ 87}$
  

• $\frac{B}{Sin\ 28}\ =\ \frac{87}{Sin\ \ 14}$

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

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

• 150
• 120
• 60
• 30

Tags

CCSS.HSF.TF.B.7

Calculate the length of BC

• 24
• 20
• 27
• 23

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

find X

• 52
• 33
• 41
• 29

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Solve for AB. (Hint: consider what you need first.)

• 18 yd

• 21 yd

• 17 yd

• 28 yd

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11