What is the angle of elevation?

The angle of elevation is the angle formed by the line of sight when looking up at an object from a horizontal line.

What is the angle of depression?

The angle of depression is the angle formed by the line of sight when looking down at an object from a horizontal line.

How do you solve for a missing angle in a right triangle?

Use the inverse trigonometric functions: $$ \theta = \text{sin}^{-1}(\frac{\text{opposite}}{\text{hypotenuse}}), \text{cos}^{-1}(\frac{\text{adjacent}}{\text{hypotenuse}}), \text{tan}^{-1}(\frac{\text{opposite}}{\text{adjacent}}) $$ .

What is the formula for finding a missing side using sine?

To find a missing side using sine, use the formula: $$ \text{opposite} = \text{hypotenuse} \times \text{sin}(\theta) $$ .

What is the formula for finding a missing side using cosine?

To find a missing side using cosine, use the formula: $$ \text{adjacent} = \text{hypotenuse} \times \text{cos}(\theta) $$ .

What is the formula for finding a missing side using tangent?

To find a missing side using tangent, use the formula: $$ \text{opposite} = \text{adjacent} \times \text{tan}(\theta) $$ .

How do you round answers in trigonometry?

Round answers to the specified decimal place, typically one decimal place for side lengths.

What is the significance of the 90-degree angle in trigonometry?

The 90-degree angle indicates a right triangle, which is essential for applying trigonometric ratios.

Trigonometry Review Flashcards

Student preview

15 questions

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1.

FLASHCARD QUESTION

Front

What is the definition of a trigonometric ratio?

Back

A trigonometric ratio is a ratio of the lengths of two sides of a right triangle. The primary trigonometric ratios are sine, cosine, and tangent.

2.

FLASHCARD QUESTION

Front

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

Back

3.

FLASHCARD QUESTION

Front

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

Back

4.

FLASHCARD QUESTION

Front

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

Back

5.

FLASHCARD QUESTION

Front

How do you find the height of an object using trigonometry?

Back

To find the height, use the formula: height = distance * tan(angle of elevation).

6.

FLASHCARD QUESTION

Front

What is the Pythagorean theorem?

Back

7.

FLASHCARD QUESTION

Front

What is the relationship between the angles and sides in a right triangle?

Back

The angles in a right triangle are related to the lengths of the sides through trigonometric ratios.

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