WorksheetsTrig Ratios, Cofunctions, Degrees & Angle Measures
Total questions: 16
Worksheet time: 18mins
What is the reference angle for 125°?
235°
125°
75°
55°
What is the reference angle for -30°?
150°
30°
80°
60°
What is the reference angle for -310⁰?
50⁰
-50⁰
20⁰
40⁰
What is the reference angle for 275°?
85°
95°
-85°
-95°
What is the reference angle for 63°?
117°
207°
63°
153°
What is the reference angle?
48
138
132
42
Which of the following is equivalent to 89o11′15" ?
89.1833 degrees
89.4333 degrees
89.225 degrees
89.1875 degrees
Convert the angle to degrees, minutes and seconds.
Convert from degrees-minutes-seconds to decimal degree measure.
Find a coterminal angle to 5°.
365°
255°
-220°
-365°
Find a coterminal angle to 45°.
360°
405°
315°
295°
Which pair of negative and positive angles are coterminal angles for 240°?
540°, -120°
600°, -120°
425°, -240°
120°, -135°
Which equation is always true?
sin A = sin B
cos A = cos B
cos A = sin B
sin A = cos B
Which expression is always equivalent to sin x when 0<x<90?
cos(90-x)
cos(45-x)
cos(2x)
cos x
The expression sin 57 is equal to
tan 33
cos 33
tan 57
cos 57
In ΔABC, where ∠C is a right angle, find sin(A).
5/√21
2/√21
2/5
cant be determined
