Trig Practice

Front

What is the Tangent function in trigonometry?

Back

The Tangent function (tan) is a ratio of the opposite side to the adjacent side in a right triangle. It is defined as tan(θ) = opposite/adjacent.

Front

How do you find the measure of an angle using the Tangent function?

Back

To find the measure of an angle using the Tangent function, use the formula θ = tan⁻¹(opposite/adjacent).

Front

What is the formula to find the opposite side in a right triangle using the Tangent function?

Back

The formula is opposite = adjacent * tan(θ).

Front

What is the formula to find the adjacent side in a right triangle using the Tangent function?

Back

The formula is adjacent = opposite / tan(θ).

Front

If tan(θ) = 1, what is the measure of angle θ?

Back

θ = 45°.

Front

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

Back

The sum of the angles in a right triangle is always 180°, with one angle being 90°.

Front

How do you round a number to the nearest tenth?

Back

Look at the hundredths place; if it is 5 or more, round up the tenths place by one. If it is less than 5, keep the tenths place the same.

Front

What is the sine function in trigonometry?

Back

The sine function (sin) is a ratio of the opposite side to the hypotenuse in a right triangle. It is defined as sin(θ) = opposite/hypotenuse.

Front

What is the cosine function in trigonometry?

Back

The cosine function (cos) is a ratio of the adjacent side to the hypotenuse in a right triangle. It is defined as cos(θ) = adjacent/hypotenuse.

Front

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

Back

Use the inverse trigonometric functions: sin⁻¹, cos⁻¹, or tan⁻¹, depending on the known sides.