Trig Things Assessment

Front

What is the definition of sine in a right triangle?

Back

Sine (sin) is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the definition of cosine in a right triangle?

Back

Cosine (cos) is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the definition of tangent in a right triangle?

Back

Tangent (tan) is the ratio of the length of the opposite side to the length of the adjacent side.

Front

What is the Pythagorean theorem?

Back

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

How do you find the length of the hypotenuse using sine?

Back

Hypotenuse = opposite side / sin(angle).

Front

How do you find the length of the adjacent side using cosine?

Back

Adjacent side = hypotenuse * cos(angle).

Front

How do you find the length of the opposite side using tangent?

Back

Opposite side = adjacent side * tan(angle).

Front

What is the sine of a 30-degree angle?

Back

sin(30°) = 0.5.

Front

What is the cosine of a 30-degree angle?

Back

cos(30°) = √3/2.

Front

What is the tangent of a 30-degree angle?

Back

tan(30°) = 1/√3.