Basic Trig Ratios

Front

What is the hypotenuse of a right triangle?

Back

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

Front

What is the sine ratio?

Back

Front

What is the cosine ratio?

Back

Front

What is the tangent ratio?

Back

Front

What mnemonic helps remember the definitions of the trig ratios?

Back

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

Front

In a right triangle, if one angle is 30 degrees, what is the sine of that angle?

Back

Front

In a right triangle, if one angle is 60 degrees, what is the cosine of that angle?

Back

Front

In a right triangle, if one angle is 45 degrees, what is the tangent of that angle?

Back

Front

What is the relationship between the sides of a 30-60-90 triangle?

Back

Front

What is the relationship between the sides of a 45-45-90 triangle?

Back