Trigonometry (Ratios and Missing Sides)

Front

What is the definition of sine in a right triangle?

Back

Sine (sin) 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 (cos) 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 (tan) is the ratio of the length of the opposite side to the length of the adjacent side.

Front

What is the SOH-CAH-TOA mnemonic used for?

Back

It is used to remember the definitions of sine, cosine, and tangent in right triangles.

Front

If angle A is 30 degrees, what is sin(A)?

Back

Front

If angle A is 45 degrees, what is cos(A)?

Back

Front

What is the Pythagorean theorem?

Back

Front

How do you find the length of a side using sine?

Back

Front

How do you find the length of a side using cosine?

Back

Front

How do you find the length of a side using tangent?

Back