Trig Fun

Front

Which side is adjacent to angle A in a right triangle with sides 5, 12, and 13?

Back

The side adjacent to angle A is 12.

Front

What is the definition of a coterminal angle?

Back

Coterminal angles are angles that share the same terminal side when drawn in standard position. For example, 30° and 390° are coterminal.

Front

What is the formula for secant in terms of cosine?

Back

secθ = 1/cosθ.

Front

What is the ratio for Cosine in a right triangle?

Back

Cosine is defined as the ratio of the length of the adjacent side to the length of the hypotenuse (Adj/Hyp).

Front

If an angle measures 30°, what is one of its coterminal angles?

Back

One coterminal angle of 30° is 390°.

Front

In a right triangle, if the opposite side is 5 and the hypotenuse is 13, what is the sine of the angle opposite the side of length 5?

Back

sin(θ) = Opp/Hyp = 5/13.

Front

What is the relationship between sine and cosine in a right triangle?

Back

Sine and cosine are complementary; sin(θ) = cos(90° - θ).

Front

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

Back

Tangent is defined as the ratio of the length of the opposite side to the length of the adjacent side (Opp/Adj).

Front

How do you find the angle of elevation from a point on the ground to the top of a building?

Back

Use the tangent function: tan(θ) = Opp/Hyp, where Opp is the height of the building and Hyp is the distance from the building.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.