What is the definition of tangent in a right triangle?

Tangent is the ratio of the opposite side to the adjacent side: $$\tan(\theta) = \frac{\text{opposite}}{\text{adjacent}}$$ .

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

Sine is the ratio of the opposite side to the hypotenuse: $$\sin(\theta) = \frac{\text{opposite}}{\text{hypotenuse}}$$ .

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

Cosine is the ratio of the adjacent side to the hypotenuse: $$\cos(\theta) = \frac{\text{adjacent}}{\text{hypotenuse}}$$ .

What is the relationship between sine and cosecant?

Cosecant is the reciprocal of sine: $$\csc(\theta) = \frac{1}{\sin(\theta)}$$ .

What is the relationship between cosine and secant?

Secant is the reciprocal of cosine: $$\sec(\theta) = \frac{1}{\cos(\theta)}$$ .

How do you find the angle of elevation in a right triangle?

Use the inverse trigonometric functions, such as $$\arcsin$$ , $$\arccos$$ , or $$\arctan$$ .

What is the definition of a right triangle?

A triangle with one angle measuring 90 degrees.

What is the sum of the angles in any triangle?

The sum of the angles in any triangle is 180 degrees.

T2 & T3 Flashcards

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the reciprocal of sine?

Back

Cosecant or csc.

2.

FLASHCARD QUESTION

Front

What is the angle the wire makes with the ground if a 30 ft. wire stretches from the top of a 10 ft. light pole?

Back

19 degrees.

3.

FLASHCARD QUESTION

Front

If a plane takes off at an angle of 30 degrees and reaches a height of 10 miles, what is the diagonal distance it has traveled?

Back

20 miles.

4.

FLASHCARD QUESTION

Front

Back

2.

5.

FLASHCARD QUESTION

Front

What is the term for the side opposite the angle in a right triangle?

Back

Opposite side.

6.

FLASHCARD QUESTION

Front

What is the term for the side adjacent to the angle in a right triangle?

Back

Adjacent side.

7.

FLASHCARD QUESTION

Front

What is the Pythagorean theorem?

Back

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