Basic Trigonometric Assessment

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

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 sine and cosine?

Back

The sine and cosine functions are related by the identity: sin²(θ) + cos²(θ) = 1 for any angle θ.

Front

How do you find the sine of an angle?

Back

To find the sine of an angle in a right triangle, divide the length of the opposite side by the length of the hypotenuse.

Front

How do you find the cosine of an angle?

Back

To find the cosine of an angle in a right triangle, divide the length of the adjacent side by the length of the hypotenuse.

Front

How do you find the tangent of an angle?

Back

To find the tangent of an angle in a right triangle, divide the length of the opposite side by the length of the adjacent side.

Front

What is the value of sin(45°)?

Back

sin(45°) = √2/2.

Front

What is the value of cos(45°)?

Back

cos(45°) = √2/2.