Ch 5.2 Graded Flashcard (AL)

Front

What is the sine ratio in a right triangle?

Back

The sine ratio is defined as the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the cosine ratio in a right triangle?

Back

The cosine ratio is defined as the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the tangent ratio in a right triangle?

Back

The tangent ratio is defined as the ratio of the length of the opposite side to the length of the adjacent side.

Front

If sin(33) = x/14, what is the value of x?

Back

x = 14 * sin(33) (approximately 7.4).

Front

If cos(40) = w/28, what is the value of w?

Back

w = 28 * cos(40) (approximately 21.5).

Front

What is the formula to find the height of an object using angle of elevation?

Back

Height = Distance * tan(angle of elevation).

Front

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

Back

The sides of a right triangle are proportional to the sine, cosine, and tangent of its angles.

Front

How do you find the length of a side using the sine function?

Back

Use the formula: sin(angle) = opposite/hypotenuse.

Front

How do you find the length of a side using the cosine function?

Back

Use the formula: cos(angle) = adjacent/hypotenuse.

Front

How do you find the length of a side using the tangent function?

Back

Use the formula: tan(angle) = opposite/adjacent.