Trigonometric Ratios

Front

What is the hypotenuse in a right triangle?

Back

The hypotenuse is the side opposite the right angle.

Front

What is the formula for Cosine in a right triangle?

Back

Cosine (Cos X) = Adjacent side / Hypotenuse.

Front

What is the formula for Tangent in a right triangle?

Back

Tangent (Tan X) = Opposite side / Adjacent side.

Front

What is the ratio of the opposite side to the hypotenuse called?

Back

Sine (Sin X) = Opposite side / Hypotenuse.

Front

If the opposite side is 14 and the hypotenuse is 50, what is the sine ratio?

Back

Sin X = 14/50.

Front

If the adjacent side is 24 and the opposite side is 7, what is the tangent ratio?

Back

Tan X = 7/24.

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).

Front

What is the value of Cos X if the adjacent side is 15 and the hypotenuse is 17?

Back

Cos X = 15/17.

Front

What is the value of Tan X if the opposite side is 8 and the adjacent side is 15?

Back

Tan X = 8/15.

Front

What is the sine of an angle if the opposite side is 7 and the hypotenuse is 25?

Back

Sin X = 7/25.