Trigonometric Ratios

Front

What are the three primary trigonometric ratios?

Back

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

Front

Define the sine ratio in a right triangle.

Back

Front

Define the cosine ratio in a right triangle.

Back

Front

Define the tangent ratio in a right triangle.

Back

Front

What type of triangle is required to use trigonometric ratios?

Back

A right triangle.

Front

What is the opposite side in relation to angle θ in a triangle?

Back

The side opposite to angle θ.

Front

What is the adjacent side in relation to angle θ in a triangle?

Back

The side next to angle θ that is not the hypotenuse.

Front

How do you find the hypotenuse in a right triangle?

Back

The hypotenuse is the longest side of the triangle, opposite the right angle.

Front

What is the mnemonic to remember the trigonometric ratios?

Back

SOH-CAH-TOA, which stands for: Sine = Opposite/Hypotenuse, Cosine = Adjacent/Hypotenuse, Tangent = Opposite/Adjacent.

Front

If sin A = 0.5, what is the value of angle A?

Back

Angle A is 30 degrees (or π/6 radians).