CP Geo Unit 9 Review

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 relationship between sine, cosine, and tangent?

Back

The relationship is given by the equation: tan(θ) = sin(θ)/cos(θ).

Front

How do you find the angle of elevation using a right triangle?

Back

The angle of elevation can be found using the inverse tangent function: θ = tan⁻¹(opposite/adjacent).

Front

What is the formula for finding the length of a side in a right triangle using sine?

Back

The formula is: sin(θ) = opposite/hypotenuse, which can be rearranged to find the opposite side: opposite = hypotenuse * sin(θ).

Front

What is the formula for finding the length of a side in a right triangle using cosine?

Back

The formula is: cos(θ) = adjacent/hypotenuse, which can be rearranged to find the adjacent side: adjacent = hypotenuse * cos(θ).

Front

What is the formula for finding the length of a side in a right triangle using tangent?

Back

The formula is: tan(θ) = opposite/adjacent, which can be rearranged to find the opposite side: opposite = adjacent * tan(θ).

Front

What is the value of sin(45 degrees)?

Back

sin(45 degrees) = √2/2.

Front

What is the value of cos(45 degrees)?

Back

cos(45 degrees) = √2/2.