GEO HW - Trig Practice

Front

What is the formula to find the length of a side in a right triangle using tangent?

Back

x = opposite / adjacent

Front

If the angle is 33 degrees and the opposite side is 132, how do you find the adjacent side?

Back

x = 132 / tan(33)

Front

What is the sine function used for in trigonometry?

Back

The sine function relates the angle of a right triangle to the ratio of the length of the opposite side to the hypotenuse.

Front

What is the cosine function used for in trigonometry?

Back

The cosine function relates the angle of a right triangle to the ratio of the length of the adjacent side to the hypotenuse.

Front

What is the tangent function used for in trigonometry?

Back

The tangent function relates the angle of a right triangle to the ratio of the length of the opposite side to the adjacent side.

Front

How do you round a number to the nearest tenth?

Back

Look at the hundredths place; if it's 5 or more, round up.

Front

Solve for x: If tan(θ) = 0.5 and the adjacent side is 10, what is the opposite side?

Back

x = 10 * 0.5 = 5

Front

If sin(30°) = 0.5, what is the length of the hypotenuse if the opposite side is 3?

Back

Hypotenuse = opposite / sin(30°) = 3 / 0.5 = 6.

Front

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

Back

The lengths of the sides are proportional to the sine, cosine, and tangent of the angles.

Front

If you have a right triangle with one angle measuring 45 degrees, what can you say about the lengths of the sides?

Back

The two legs are of equal length.