Basic Trig Ratios

Front

What are the basic trigonometric ratios?

Back

Sine (sin), Cosine (cos), Tangent (tan).

Front

What does SOH CAH TOA stand for?

Back

SOH: Sine = Opposite/Hypotenuse, CAH: Cosine = Adjacent/Hypotenuse, TOA: Tangent = Opposite/Adjacent.

Front

In a right triangle, what is the hypotenuse?

Back

The longest side opposite the right angle.

Front

If the opposite side is 9 and the hypotenuse is 41, what is sin(θ)?

Back

Front

If the adjacent side is 24 and the hypotenuse is 25, what is cos(θ)?

Back

Front

What is the tangent of an angle in a right triangle?

Back

Tangent = Opposite/Adjacent.

Front

How can you find the length of the adjacent side if you know the opposite side and the hypotenuse?

Back

Front

What is the value of cos(θ) if the adjacent side is 40 and the hypotenuse is 50?

Back

Front

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

Back

Front

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

Back

The square of the hypotenuse equals the sum of the squares of the other two sides (Pythagorean theorem).