Trig Missing angles and sides wkst

Front

What is the sine function?

Back

The sine function (sin) is a trigonometric function that relates the angle of a right triangle to the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the cosine function?

Back

The cosine function (cos) is a trigonometric function that relates the angle of a right triangle to the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the tangent function?

Back

The tangent function (tan) is a trigonometric function that relates the angle of a right triangle to the ratio of the length of the opposite side to the length of the adjacent side.

Front

How do you find the missing side using sine?

Back

To find a missing side using sine, use the formula: sin(angle) = opposite/hypotenuse.

Front

How do you find the missing side using cosine?

Back

To find a missing side using cosine, use the formula: cos(angle) = adjacent/hypotenuse.

Front

How do you find the missing side using tangent?

Back

To find a missing side using tangent, use the formula: tan(angle) = opposite/adjacent.

Front

What is the Pythagorean theorem?

Back

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

Front

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

Back

In a right triangle, the angles determine the ratios of the lengths of the sides, which can be used to find missing angles or sides using trigonometric functions.

Front

How do you round an angle to the nearest tenth?

Back

To round an angle to the nearest tenth, look at the hundredths place. If it's 5 or more, round up; if it's less than 5, round down.

Front

What is the inverse sine function?

Back

The inverse sine function (sin⁻¹) is used to find the angle when the sine value is known.