Unit 3B Review

Front

What is the measure of angle A if the options are 58°, 61°, 78°, and 74°?

Back

The measure of angle A is 78°.

Front

Find the length of segment AB given the options: 10, 8, 6.1, 4.9.

Back

The length of segment AB is 8.

Front

Given the point (2, -√5), find the value of sin(θ).

Back

The value of sin(θ) is -\frac{\sqrt{5}}{3}.

Front

What is the amplitude of a function if the options are 2, 2π, -2, and 1?

Back

The amplitude of the function is 2.

Front

Find the length of side y given the options: 22.32 cm, 36.5 cm, 76.34 cm, and 87.76 cm.

Back

The length of side y is 76.34 cm.

Front

Define amplitude in the context of trigonometric functions.

Back

Amplitude is the maximum distance from the midline of the function to its peak or trough.

Front

What is the sine function and how is it defined in a right triangle?

Back

In a right triangle, the sine of an angle is defined as the ratio of the length of the opposite side to the length of the hypotenuse.

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

How do you find the length of a side in a right triangle using trigonometric ratios?

Back

You can use the sine, cosine, or tangent ratios depending on the known angles and sides.

Front

What is the relationship between sine and cosine?

Back

Sine and cosine are co-functions: sin(θ) = cos(90° - θ).