Trig Ratio Flashcard

Front

What is the definition of sine in a right triangle?

Back

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

Front

What is the definition of cosine in a right triangle?

Back

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

Front

What is the definition of tangent in a right triangle?

Back

Tangent is the ratio of the length of the opposite side to the length of the adjacent side.

Front

What is the Pythagorean theorem?

Back

Front

If the opposite side is 3 and the hypotenuse is 5, what is sinA?

Back

Front

If the adjacent side is 4 and the hypotenuse is 5, what is cosA?

Back

Front

If the opposite side is 3 and the adjacent side is 4, what is tanA?

Back

Front

What is the relationship between the sides of a 30-60-90 triangle?

Back

Front

What is the relationship between the sides of a 45-45-90 triangle?

Back

Front

What is the sine of 90 degrees?

Back

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