Intro to Trigonometry

Front

What is the definition of cosine in a right triangle?

Back

Cosine (cos) of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the definition of sine in a right triangle?

Back

Sine (sin) of an angle is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the definition of tangent in a right triangle?

Back

Tangent (tan) of an angle 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

Back

Front

What is the sine ratio for angle Z if the opposite side is 5 and the hypotenuse is 13?

Back

Front

Which trigonometric function is used when given the opposite and adjacent sides?

Back

Tangent.

Front

What is the formula to find the length of the hypotenuse if the opposite side is 5 and the angle is 30 degrees?

Back

Front

What is the relationship between sine and cosine for complementary angles?

Back

Front

Back