What is the Pythagorean theorem?

In a right triangle, $$a^2 + b^2 = c^2$$ , where c is the hypotenuse.

What is the relationship between sine and cosine?

$$\sin^2(x) + \cos^2(x) = 1$$ .

How do you find the sine of an angle using a calculator?

Use the sine function key and input the angle in degrees or radians.

What is the unit circle?

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

What is the reference angle?

The acute angle formed by the terminal side of an angle and the x-axis.

Trigonometric Ratios Flashcards

Student preview

16 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the ratio for Tangent?

Back

Opp/Adj

Tags

CCSS.HSG.SRT.C.6

2.

FLASHCARD QUESTION

Front

What is the correct ratio for Cos C?

Back

Tags

CCSS.HSG.SRT.C.6

3.

FLASHCARD QUESTION

Front

Which is the correct ratio for tangent?

Back

Tags

CCSS.HSG.SRT.C.6

4.

FLASHCARD QUESTION

Front

What is the correct ratio?

Back

5.

FLASHCARD QUESTION

Front

Which is the correct ratio for sine?

Back

Tags

CCSS.HSG.SRT.C.6

6.

FLASHCARD QUESTION

Front

Define Sine in terms of a right triangle.

Back

Sine is the ratio of the length of the opposite side to the length of the hypotenuse.

Tags

CCSS.HSG.SRT.C.6

7.

FLASHCARD QUESTION

Front

Define Cosine in terms of a right triangle.

Back

Cosine is the ratio of the length of the adjacent side to the length of the hypotenuse.

Tags

CCSS.HSG.SRT.C.6

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