Trigonometric Ratios

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 formula for calculating Sin in a right triangle?

Back

Sin (θ) = Opposite side / Hypotenuse.

Front

What is the formula for calculating Cos in a right triangle?

Back

Cos (θ) = Adjacent side / Hypotenuse.

Front

What is the formula for calculating Tan in a right triangle?

Back

Tan (θ) = Opposite side / Adjacent side.

Front

What is the value of Sin(45°)?

Back

Sin(45°) = √2/2.

Front

What is the value of Cos(45°)?

Back

Cos(45°) = √2/2.

Front

What is the value of Tan(45°)?

Back

Tan(45°) = 1.

Front

If the opposite side is 30 and the adjacent side is 40, what is Tan X?

Back

Tan X = 30/40.

Front

If the hypotenuse is 10 and the adjacent side is 6, what is Cos D?

Back

Cos D = 6/10.

Front

What is the relationship between the sides in a right triangle?

Back

The square of the hypotenuse is equal to the sum of the squares of the other two sides (Pythagorean theorem).