Trigs Angles and Sides

Front

What is the definition of the opposite side in a right triangle?

Back

The opposite side is the side opposite to the angle in question.

Front

What is the definition of the adjacent side in a right triangle?

Back

The adjacent side is the side that forms the angle in question along with the hypotenuse.

Front

What is the hypotenuse in a right triangle?

Back

The hypotenuse is the longest side of a right triangle, opposite the right angle.

Front

How do you find the value of x in a right triangle using trigonometric ratios?

Back

Use the sine, cosine, or tangent ratios based on the known sides or angles.

Front

What is the sine ratio?

Back

Sine = Opposite side / Hypotenuse.

Front

What is the cosine ratio?

Back

Cosine = Adjacent side / Hypotenuse.

Front

What is the tangent ratio?

Back

Tangent = Opposite side / Adjacent side.

Front

If angle D is 40 degrees, what is the sine of angle D?

Back

Sine(40°) = Opposite side / Hypotenuse.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

How do you round a number to the nearest degree?

Back

Look at the decimal; if it's 0.5 or higher, round up; if it's less than 0.5, round down.