unit circle

unit circle

Assessment

Flashcard

Mathematics

11th Grade - University

Hard

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12 questions

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1.

FLASHCARD QUESTION

Front

What is the unit circle?

Back

A circle with a radius of 1 centered at the origin (0,0) in the coordinate plane, used to define trigonometric functions.

2.

FLASHCARD QUESTION

Front

What are the coordinates of the point at 0° on the unit circle?

Back

(1, 0)

3.

FLASHCARD QUESTION

Front

What are the coordinates of the point at 90° on the unit circle?

Back

(0, 1)

4.

FLASHCARD QUESTION

Front

What are the coordinates of the point at 180° on the unit circle?

Back

(-1, 0)

5.

FLASHCARD QUESTION

Front

What are the coordinates of the point at 270° on the unit circle?

Back

(0, -1)

6.

FLASHCARD QUESTION

Front

What is the value of sin(30°)?

Back

1/2

7.

FLASHCARD QUESTION

Front

What is the value of sin(45°)?

Back

√2/2

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