Right Triangle Trig and Unit Circle

What is the reference angle for 240°?

• 60°

• 30°

• 45°

• 210°

What is the value of x?

• 17.30

• 11.33

• 0.06

• 23.82

Find Cos(A) as a decimal rounded the the nearest ten-thousandth.

Find the measure of angle A.

What is the value of x?

• 9.17

• 98.13

• 0.11

• 26.69

Find the measure of the indicated angle.

A hawk sitting on a tree branch spots a mouse on the ground 15 feet from the base of the tree.  The hawk swoops down toward the mouse at an angle of 30 degrees. What is the distance from the tree branch to the mouse? 

• 7.5 ft 

• 15 ft 

• 26 ft 

• 30 ft 

sec x =

• 1/cosx

• 1/sinx

• 1/cscx

• 1/tanx

What side is OPPOSITE of angle C?

• 7

• 25

• 24