Trig Missing angles and sides

Front

What is the sine function in relation to a right triangle?

Back

The sine function (sin) is defined as the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the cosine function in relation to a right triangle?

Back

The cosine function (cos) is defined as the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the tangent function in relation to a right triangle?

Back

The tangent function (tan) is defined as the ratio of the length of the opposite side to the length of the adjacent side.

Front

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

Back

To find the measure of an angle using the sine function, use the inverse sine function (sin⁻¹) on the ratio of the opposite side to the hypotenuse.

Front

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

Back

To find the measure of an angle using the cosine function, use the inverse cosine function (cos⁻¹) on the ratio of the adjacent side to the hypotenuse.

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 inverse tangent function (tan⁻¹) on the ratio of the opposite side to the adjacent side.

Front

What is the Pythagorean theorem?

Back

The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides (a² + b² = c²).

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 (sine, cosine, tangent).

Front

What is the purpose of rounding in trigonometric calculations?

Back

Rounding is used to simplify the results of calculations to a specified degree of accuracy, often to the nearest tenth or hundredth.

Front

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

Back

To solve for a missing side, use the Pythagorean theorem or trigonometric ratios depending on the information given.