Coterminal and reference angles
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
Wayground Content
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a coterminal angle?
Back
Coterminal angles are angles that share the same terminal side when drawn in standard position. They can be found by adding or subtracting multiples of 360°.
2.
FLASHCARD QUESTION
Front
Find a coterminal angle to 5°.
Back
365°
3.
FLASHCARD QUESTION
Front
What is a reference angle?
Back
A reference angle is the acute angle formed by the terminal side of an angle and the x-axis. It is always positive and less than 90°.
4.
FLASHCARD QUESTION
Front
Find the reference angle for an angle measuring 150°.
Back
30°
5.
FLASHCARD QUESTION
Front
Find a coterminal angle to -90°.
Back
-450°
6.
FLASHCARD QUESTION
Front
Find the reference angle for an angle measuring -310°.
Back
50°
7.
FLASHCARD QUESTION
Front
What is the reference angle for 210°?
Back
30°
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