Solving Right and Oblique Triangle

Which Law would you use?

• Law of Sines
• Law of Cosines
• Law of the Jungle
• Law of Gravity

Which Law would you use?

• Law of Sines
• Law of Cosines
• Law of the Jungle
• Law of Gravity

Which Law would you use?

• Law of Sines
• Law of Cosines
• Law of the Jungle
• Law of Gravity

What is the measure of angle A?

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

What is the length of side x?

• 130 cm
• 112 cm
• 150 cm
• 105 cm

Find the measure of ∠A

• 18
• 28
• 25
• 24

Jack is flying his kite.  He runs 100 feet away from his house and lets out 75 feet of string.  The angle of elevation from the ground to the kite is 65 degrees.  How far away is the kite from the house?

• 9285.73 ft
• 96.36 ft
• 24061.81 ft
• 155.12 ft

A yacht is anchored 90 feet offshore from the base of a lighthouse.  The angle of elevation from the boat to the top of the lighthouse is 26 degrees.   Which of these is nearest to the height of the lighthouse? 

• 25 feet
• 44 feet 
• 81 feet 
• 185 feet 

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

Which of the following formulas shows the Law of Cosines?

• $c^2=a^2+b^2-4ac+\cos A$

• $c^2=a^2-b^2-2ab\cos C$

• $c^2=a^2+b^2-2ab\cos C$

• $\frac{\cos A}{a}=\frac{\cos B}{b}$