IM3 LT49 & LT50 Right triangle trigonometry

Front

What is the ratio for Cosine?

Back

Adjacent/Hypotenuse

Front

A yacht is anchored 90 feet offshore from the base of a lighthouse. The angle of elevation from the boat to the top of the lighthouse is 26 degrees. What is the height of the lighthouse?

Back

45 feet

Front

The ratio in a right triangle of adjacent over hypotenuse is _____

Back

cosine

Front

Which trigonometric ratio is correct? sinA= opp/adj, cosA= opp/hyp, tanA= opp/adj, sinA= adj/opp

Back

tanA= opp/adj

Front

A hawk sitting on a tree branch spots a mouse on the ground 15 feet from the base of the tree. The hawk swoops down toward the mouse at an angle of 30 degrees. What is the distance from the tree branch to the mouse?

Back

30 ft

Front

Define sine in terms of a right triangle.

Back

Sine is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

Define cosine in terms of a right triangle.

Back

Cosine is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

Define tangent in terms of a right triangle.

Back

Tangent is the ratio of the length of the opposite side to the length of the adjacent side.

Front

What is the Pythagorean theorem?

Back

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

Front

If the angle of elevation is 45 degrees, what is the relationship between the opposite and adjacent sides?

Back

They are equal.