What are the possible criteria for the Law of Cosines?

Which Law would you use?

Which Law would you use?

Two stakes are holding a small blimp in place. Stake A measures an angle of elevation of 49^o and Stake B measures an angle of elevation of 58^o. If the string attached to Stake A has a length of 148 feet, what is the length of the string attached to Stake B?

Mr. Creole must find the distance from Point A to Point B on opposite sides of a lake. He locates Point C that is 4.15 miles from point A and 5.33 miles from Point B. He measures the angle ACB to be 37^o. Find the distance from point A to point B.

In an effort to recover Abraham's lost cell phone, two cell towers stationed 6000 feet apart detect the signal from the phone. Using strength of signal, the west tower measures the phone to be 5050 feet away and the east tower detects the phone to be 2420 feet away (see diagram). What angle  $$\theta$$  should Abraham walk from the west tower to get to his phone?

A GPS satellite measures the distances to two buildings to be 370 km and 350 km, and the angle between them to be 2.1^o (see diagram). How far apart are the two buildings?

What is the reference angle for 125°?

What is the reference angle for -310⁰?

What is the reference angle?

In which quadrant is -570⁰

Find a coterminal angle to 5°.

What are the negative and positive coterminal angles of 240°?

The length of an arc is 18cm and the radius of the circle is 6cm. What is the radian measure of the central angle?

A central angle measure 4.5 radians and has an arc of 35 inches. What is the radius of the circle?

Find the arc length.