Trigonometry Finding The Missing Side

Front

What is the definition of Trigonometry?

Back

Trigonometry is a branch of mathematics that studies the relationships between the angles and sides of triangles.

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): a² + b² = c².

Front

What is the sine function?

Back

The sine function (sin) is a trigonometric function defined as the ratio of the length of the opposite side to the length of the hypotenuse in a right triangle.

Front

What is the cosine function?

Back

The cosine function (cos) is a trigonometric function defined as the ratio of the length of the adjacent side to the length of the hypotenuse in a right triangle.

Front

What is the tangent function?

Back

The tangent function (tan) is a trigonometric function defined as the ratio of the length of the opposite side to the length of the adjacent side in a right triangle.

Front

How do you find the missing side using sine?

Back

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

Front

How do you find the missing side using cosine?

Back

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

Front

How do you find the missing side using tangent?

Back

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

Front

What is the relationship between sine, cosine, and tangent?

Back

The relationship is: tan(angle) = sin(angle)/cos(angle).

Front

How do you set up a problem to find a missing side?

Back

Identify the known sides and angles, choose the appropriate trigonometric function, and set up the equation accordingly.