Trig Finding Missing Side

Front

What is the sine ratio in a right triangle?

Back

The sine ratio is defined as the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the cosine ratio in a right triangle?

Back

The cosine ratio is defined as the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the tangent ratio in a right triangle?

Back

The tangent ratio 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 length of a side using the sine function?

Back

To find the length of a side using the sine function, use the formula: Sin(θ) = opposite/hypotenuse.

Front

How do you find the length of a side using the cosine function?

Back

To find the length of a side using the cosine function, use the formula: Cos(θ) = adjacent/hypotenuse.

Front

How do you find the length of a side using the tangent function?

Back

To find the length of a side using the tangent function, use the formula: Tan(θ) = 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 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 degrees and radians?

Back

Degrees and radians are two units for measuring angles. 180 degrees is equal to π radians.

Front

What is the purpose of using trigonometric ratios?

Back

Trigonometric ratios are used to find unknown side lengths and angles in right triangles.

Front

How do you round a number to the nearest tenth?

Back

To round a number to the nearest tenth, look at the hundredths place. If it is 5 or greater, round up; if it is less than 5, round down.